<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Fujitsu Interstage XWand B0160 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:hpq="http://www.hp.com/20110731" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:p0="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink">
  <link:roleRef roleURI="http://www.hp.com/role/BalanceSheet" xlink:type="simple" xlink:href="hpq-20110731.xsd#BalanceSheet"/>
  <link:roleRef roleURI="http://www.hp.com/role/BalanceSheetParenthetical" xlink:type="simple" xlink:href="hpq-20110731.xsd#BalanceSheetParenthetical"/>
  <link:roleRef roleURI="http://www.hp.com/role/CashFlows" xlink:type="simple" xlink:href="hpq-20110731.xsd#CashFlows"/>
  <link:roleRef roleURI="http://www.hp.com/role/StatementOfIncome" xlink:type="simple" xlink:href="hpq-20110731.xsd#StatementOfIncome"/>
  <link:roleRef roleURI="http://www.hp.com/role/StatementOfStockholdersEquity" xlink:type="simple" xlink:href="hpq-20110731.xsd#StatementOfStockholdersEquity"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureIncomeTaxesDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureIncomeTaxesDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureAcquisitionsDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureAcquisitionsDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureAcquisitionsDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureAcquisitionsDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureAcquisitionsDetails3" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureAcquisitionsDetails3"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureBalanceSheetDetailsDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureBalanceSheetDetailsDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureBorrowingsDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureBorrowingsDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureBorrowingsDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureBorrowingsDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureFairValueDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureFairValueDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureFairValueDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureFairValueDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureFinancialInstrumentsDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails6" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureFinancialInstrumentsDetails6"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureFinancialInstrumentsDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails3" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureFinancialInstrumentsDetails3"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails4" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureFinancialInstrumentsDetails4"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureGoodwillAndPurchasedIntangibleAssetsDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureGoodwillAndPurchasedIntangibleAssetsDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureGoodwillAndPurchasedIntangibleAssetsDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureGoodwillAndPurchasedIntangibleAssetsDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureLitigationAndContingenciesDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureLitigationAndContingenciesDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureNetEarningsPerShareDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureNetEarningsPerShareDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureRestructuringChargesDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureRestructuringChargesDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureRetirementAndPostRetirementBenefitPlansDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureSegmentInformationDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureSegmentInformationDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureStockBasedCompensationDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureStockBasedCompensationDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureSummaryOfSignificantAccountingPoliciesDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails3" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureRetirementAndPostRetirementBenefitPlansDetails3"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails4" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureRetirementAndPostRetirementBenefitPlansDetails4"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureValuationAndQualifyingAccountsDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureValuationAndQualifyingAccountsDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureSegmentInformationDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureSegmentInformationDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails6" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureRetirementAndPostRetirementBenefitPlansDetails6"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails5" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureRetirementAndPostRetirementBenefitPlansDetails5"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureStockBasedCompensationDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureStockBasedCompensationDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureStockBasedCompensationDetails3" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureStockBasedCompensationDetails3"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureSummaryOfSignificantAccountingPoliciesDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureTaxesOnEarningsDetails2DimensionalAddition" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureTaxesOnEarningsDetails2DimensionalAddition"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureStockholdersEquityDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureStockholdersEquityDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureRetirementAndPostRetirementBenefitPlansDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureFinancingReceivablesAndOperatingLeasesDetails2" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureFinancingReceivablesAndOperatingLeasesDetails2"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureSubsequentEventsDetails" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureSubsequentEventsDetails"/>
  <link:roleRef roleURI="http://www.hp.com/role/DisclosureBalanceSheetDetailsDetails3" xlink:type="simple" xlink:href="hpq-20110731.xsd#DisclosureBalanceSheetDetailsDetails3"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/StatementOfIncome">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="StatementLineItems" xlink:to="StatementTable" xlink:title="definition: StatementLineItems to StatementTable" order="10.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="StatementScenarioAxis" xlink:title="StatementScenarioAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="StatementTable" xlink:to="StatementScenarioAxis" xlink:title="definition: StatementTable to StatementScenarioAxis" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="ScenarioUnspecifiedDomain" xlink:title="ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="StatementScenarioAxis" xlink:to="ScenarioUnspecifiedDomain" xlink:title="definition: StatementScenarioAxis to ScenarioUnspecifiedDomain" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="ScenarioUnspecifiedDomain_2" xlink:title="ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="StatementScenarioAxis" xlink:to="ScenarioUnspecifiedDomain_2" xlink:title="definition: StatementScenarioAxis to ScenarioUnspecifiedDomain" use="optional" priority="1" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="IncomeStatementAbstract" xlink:title="IncomeStatementAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementLineItems" xlink:to="IncomeStatementAbstract" xlink:title="definition: StatementLineItems to IncomeStatementAbstract" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="RevenuesAbstract" xlink:title="RevenuesAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="RevenuesAbstract" xlink:title="definition: IncomeStatementAbstract to RevenuesAbstract" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Revenues" xlink:label="Revenues" xlink:title="Revenues"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RevenuesAbstract" xlink:to="Revenues" xlink:title="definition: RevenuesAbstract to Revenues" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SalesRevenueGoodsNet" xlink:label="SalesRevenueGoodsNet" xlink:title="SalesRevenueGoodsNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RevenuesAbstract" xlink:to="SalesRevenueGoodsNet" xlink:title="definition: RevenuesAbstract to SalesRevenueGoodsNet" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SalesRevenueServicesNet" xlink:label="SalesRevenueServicesNet" xlink:title="SalesRevenueServicesNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RevenuesAbstract" xlink:to="SalesRevenueServicesNet" xlink:title="definition: RevenuesAbstract to SalesRevenueServicesNet" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancingRevenue" xlink:label="FinancingRevenue" xlink:title="FinancingRevenue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RevenuesAbstract" xlink:to="FinancingRevenue" xlink:title="definition: RevenuesAbstract to FinancingRevenue" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="CostsAndExpensesAbstract" xlink:title="CostsAndExpensesAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="CostsAndExpensesAbstract" xlink:title="definition: IncomeStatementAbstract to CostsAndExpensesAbstract" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="CostOfGoodsSold" xlink:title="CostOfGoodsSold"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="CostOfGoodsSold" xlink:title="definition: CostsAndExpensesAbstract to CostOfGoodsSold" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CostOfServices" xlink:label="CostOfServices" xlink:title="CostOfServices"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="CostOfServices" xlink:title="definition: CostsAndExpensesAbstract to CostOfServices" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancingInterest" xlink:label="FinancingInterest" xlink:title="FinancingInterest"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="FinancingInterest" xlink:title="definition: CostsAndExpensesAbstract to FinancingInterest" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="ResearchAndDevelopmentExpense" xlink:title="ResearchAndDevelopmentExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="ResearchAndDevelopmentExpense" xlink:title="definition: CostsAndExpensesAbstract to ResearchAndDevelopmentExpense" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="SellingGeneralAndAdministrativeExpense" xlink:title="SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="SellingGeneralAndAdministrativeExpense" xlink:title="definition: CostsAndExpensesAbstract to SellingGeneralAndAdministrativeExpense" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpense" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpense" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="FiniteLivedIntangibleAssetsAmortizationExpense" xlink:title="definition: CostsAndExpensesAbstract to FiniteLivedIntangibleAssetsAmortizationExpense" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="RestructuringCharges" xlink:title="RestructuringCharges"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="RestructuringCharges" xlink:title="definition: CostsAndExpensesAbstract to RestructuringCharges" use="optional" order="70.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessCombinationAcquisitionRelatedCharges" xlink:label="BusinessCombinationAcquisitionRelatedCharges" xlink:title="BusinessCombinationAcquisitionRelatedCharges"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="BusinessCombinationAcquisitionRelatedCharges" xlink:title="definition: CostsAndExpensesAbstract to BusinessCombinationAcquisitionRelatedCharges" use="optional" order="80.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="CostsAndExpenses" xlink:title="CostsAndExpenses"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="CostsAndExpenses" xlink:title="definition: CostsAndExpensesAbstract to CostsAndExpenses" use="optional" order="90.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PurchaseAccountingAdjustmentInventory" xlink:label="PurchaseAccountingAdjustmentInventory" xlink:title="PurchaseAccountingAdjustmentInventory"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="PurchaseAccountingAdjustmentInventory" xlink:title="definition: CostsAndExpensesAbstract to PurchaseAccountingAdjustmentInventory" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ResearchAndDevelopmentInProcess" xlink:label="ResearchAndDevelopmentInProcess" xlink:title="ResearchAndDevelopmentInProcess"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CostsAndExpensesAbstract" xlink:to="ResearchAndDevelopmentInProcess" xlink:title="definition: CostsAndExpensesAbstract to ResearchAndDevelopmentInProcess" order="8010.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="OperatingIncomeLoss" xlink:title="OperatingIncomeLoss"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="OperatingIncomeLoss" xlink:title="definition: IncomeStatementAbstract to OperatingIncomeLoss" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="NonoperatingIncomeExpense" xlink:title="NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="NonoperatingIncomeExpense" xlink:title="definition: IncomeStatementAbstract to NonoperatingIncomeExpense" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_IncomeLossBeforeIncomeTax" xlink:label="IncomeLossBeforeIncomeTax" xlink:title="IncomeLossBeforeIncomeTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="IncomeLossBeforeIncomeTax" xlink:title="definition: IncomeStatementAbstract to IncomeLossBeforeIncomeTax" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="IncomeTaxExpenseBenefit" xlink:title="definition: IncomeStatementAbstract to IncomeTaxExpenseBenefit" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="NetIncomeLoss" xlink:title="definition: IncomeStatementAbstract to NetIncomeLoss" use="optional" order="70.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="EarningsPerShareAbstract" xlink:title="EarningsPerShareAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="EarningsPerShareAbstract" xlink:title="definition: IncomeStatementAbstract to EarningsPerShareAbstract" use="optional" order="80.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="EarningsPerShareBasic" xlink:title="EarningsPerShareBasic"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EarningsPerShareAbstract" xlink:to="EarningsPerShareBasic" xlink:title="definition: EarningsPerShareAbstract to EarningsPerShareBasic" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="EarningsPerShareDiluted" xlink:title="EarningsPerShareDiluted"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EarningsPerShareAbstract" xlink:to="EarningsPerShareDiluted" xlink:title="definition: EarningsPerShareAbstract to EarningsPerShareDiluted" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="CommonStockDividendsPerShareDeclared" xlink:title="CommonStockDividendsPerShareDeclared"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="CommonStockDividendsPerShareDeclared" xlink:title="definition: IncomeStatementAbstract to CommonStockDividendsPerShareDeclared" use="optional" order="90.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="WeightedAverageNumberOfSharesOutstandingAbstract" xlink:title="WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAbstract" xlink:to="WeightedAverageNumberOfSharesOutstandingAbstract" xlink:title="definition: IncomeStatementAbstract to WeightedAverageNumberOfSharesOutstandingAbstract" use="optional" order="100.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="definition: WeightedAverageNumberOfSharesOutstandingAbstract to WeightedAverageNumberOfSharesOutstandingBasic" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="definition: WeightedAverageNumberOfSharesOutstandingAbstract to WeightedAverageNumberOfDilutedSharesOutstanding" use="optional" order="20.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/BalanceSheet">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="StatementLineItems" xlink:to="StatementTable" xlink:title="definition: StatementLineItems to StatementTable" order="10.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="StatementScenarioAxis" xlink:title="StatementScenarioAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="StatementTable" xlink:to="StatementScenarioAxis" xlink:title="definition: StatementTable to StatementScenarioAxis" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="ScenarioUnspecifiedDomain" xlink:title="ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="StatementScenarioAxis" xlink:to="ScenarioUnspecifiedDomain" xlink:title="definition: StatementScenarioAxis to ScenarioUnspecifiedDomain" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="StatementOfFinancialPositionAbstract" xlink:title="StatementOfFinancialPositionAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementLineItems" xlink:to="StatementOfFinancialPositionAbstract" xlink:title="definition: StatementLineItems to StatementOfFinancialPositionAbstract" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="AssetsAbstract" xlink:title="AssetsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfFinancialPositionAbstract" xlink:to="AssetsAbstract" xlink:title="definition: StatementOfFinancialPositionAbstract to AssetsAbstract" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="AssetsCurrentAbstract" xlink:title="AssetsCurrentAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="AssetsCurrentAbstract" xlink:title="definition: AssetsAbstract to AssetsCurrentAbstract" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsCurrentAbstract" xlink:to="CashAndCashEquivalentsAtCarryingValue" xlink:title="definition: AssetsCurrentAbstract to CashAndCashEquivalentsAtCarryingValue" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="AccountsReceivableNetCurrent" xlink:title="AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsCurrentAbstract" xlink:to="AccountsReceivableNetCurrent" xlink:title="definition: AssetsCurrentAbstract to AccountsReceivableNetCurrent" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CapitalLeasesLessorBalanceSheetNetInvestmentInDirectFinancingAndSalesTypeLeasesCurrent" xlink:label="CapitalLeasesLessorBalanceSheetNetInvestmentInDirectFinancingAndSalesTypeLeasesCurrent" xlink:title="CapitalLeasesLessorBalanceSheetNetInvestmentInDirectFinancingAndSalesTypeLeasesCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsCurrentAbstract" xlink:to="CapitalLeasesLessorBalanceSheetNetInvestmentInDirectFinancingAndSalesTypeLeasesCurrent" xlink:title="definition: AssetsCurrentAbstract to CapitalLeasesLessorBalanceSheetNetInvestmentInDirectFinancingAndSalesTypeLeasesCurrent" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InventoryNet" xlink:label="InventoryNet" xlink:title="InventoryNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsCurrentAbstract" xlink:to="InventoryNet" xlink:title="definition: AssetsCurrentAbstract to InventoryNet" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="OtherAssetsCurrent" xlink:title="OtherAssetsCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsCurrentAbstract" xlink:to="OtherAssetsCurrent" xlink:title="definition: AssetsCurrentAbstract to OtherAssetsCurrent" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="AssetsCurrent" xlink:title="AssetsCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsCurrentAbstract" xlink:to="AssetsCurrent" xlink:title="definition: AssetsCurrentAbstract to AssetsCurrent" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="PropertyPlantAndEquipmentNet" xlink:title="definition: AssetsAbstract to PropertyPlantAndEquipmentNet" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="OtherAssetsNoncurrent" xlink:title="OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="OtherAssetsNoncurrent" xlink:title="definition: AssetsAbstract to OtherAssetsNoncurrent" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Goodwill" xlink:label="Goodwill" xlink:title="Goodwill"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="Goodwill" xlink:title="definition: AssetsAbstract to Goodwill" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet" xlink:label="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet" xlink:title="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet" xlink:title="definition: AssetsAbstract to AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="Assets" xlink:title="definition: AssetsAbstract to Assets" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="LiabilitiesAndStockholdersEquityAbstract" xlink:title="LiabilitiesAndStockholdersEquityAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfFinancialPositionAbstract" xlink:to="LiabilitiesAndStockholdersEquityAbstract" xlink:title="definition: StatementOfFinancialPositionAbstract to LiabilitiesAndStockholdersEquityAbstract" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="LiabilitiesCurrentAbstract" xlink:title="LiabilitiesCurrentAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="LiabilitiesCurrentAbstract" xlink:title="definition: LiabilitiesAndStockholdersEquityAbstract to LiabilitiesCurrentAbstract" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtCurrent" xlink:label="DebtCurrent" xlink:title="DebtCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesCurrentAbstract" xlink:to="DebtCurrent" xlink:title="definition: LiabilitiesCurrentAbstract to DebtCurrent" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="AccountsPayableCurrent" xlink:title="AccountsPayableCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesCurrentAbstract" xlink:to="AccountsPayableCurrent" xlink:title="definition: LiabilitiesCurrentAbstract to AccountsPayableCurrent" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="EmployeeRelatedLiabilitiesCurrent" xlink:title="EmployeeRelatedLiabilitiesCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesCurrentAbstract" xlink:to="EmployeeRelatedLiabilitiesCurrent" xlink:title="definition: LiabilitiesCurrentAbstract to EmployeeRelatedLiabilitiesCurrent" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TaxesOnEarnings" xlink:label="TaxesOnEarnings" xlink:title="TaxesOnEarnings"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesCurrentAbstract" xlink:to="TaxesOnEarnings" xlink:title="definition: LiabilitiesCurrentAbstract to TaxesOnEarnings" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="DeferredRevenueCurrent" xlink:title="DeferredRevenueCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesCurrentAbstract" xlink:to="DeferredRevenueCurrent" xlink:title="definition: LiabilitiesCurrentAbstract to DeferredRevenueCurrent" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringReserveCurrent" xlink:label="RestructuringReserveCurrent" xlink:title="RestructuringReserveCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesCurrentAbstract" xlink:to="RestructuringReserveCurrent" xlink:title="definition: LiabilitiesCurrentAbstract to RestructuringReserveCurrent" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="OtherLiabilitiesCurrent" xlink:title="OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesCurrentAbstract" xlink:to="OtherLiabilitiesCurrent" xlink:title="definition: LiabilitiesCurrentAbstract to OtherLiabilitiesCurrent" use="optional" order="70.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="LiabilitiesCurrent" xlink:title="LiabilitiesCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesCurrentAbstract" xlink:to="LiabilitiesCurrent" xlink:title="definition: LiabilitiesCurrentAbstract to LiabilitiesCurrent" use="optional" order="80.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="LongTermDebtAndCapitalLeaseObligations" xlink:title="LongTermDebtAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="LongTermDebtAndCapitalLeaseObligations" xlink:title="definition: LiabilitiesAndStockholdersEquityAbstract to LongTermDebtAndCapitalLeaseObligations" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="OtherLiabilitiesNoncurrent" xlink:title="OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="OtherLiabilitiesNoncurrent" xlink:title="definition: LiabilitiesAndStockholdersEquityAbstract to OtherLiabilitiesNoncurrent" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommitmentsAndContingencies2009" xlink:label="CommitmentsAndContingencies2009" xlink:title="CommitmentsAndContingencies2009"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="CommitmentsAndContingencies2009" xlink:title="definition: LiabilitiesAndStockholdersEquityAbstract to CommitmentsAndContingencies2009" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:label="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:title="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:title="definition: LiabilitiesAndStockholdersEquityAbstract to StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="StockholdersEquityAbstract" xlink:title="StockholdersEquityAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:to="StockholdersEquityAbstract" xlink:title="definition: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract to StockholdersEquityAbstract" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="PreferredStockValue" xlink:title="PreferredStockValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityAbstract" xlink:to="PreferredStockValue" xlink:title="definition: StockholdersEquityAbstract to PreferredStockValue" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="CommonStockValueOutstanding" xlink:title="CommonStockValueOutstanding"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityAbstract" xlink:to="CommonStockValueOutstanding" xlink:title="definition: StockholdersEquityAbstract to CommonStockValueOutstanding" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="AdditionalPaidInCapitalCommonStock" xlink:title="AdditionalPaidInCapitalCommonStock"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityAbstract" xlink:to="AdditionalPaidInCapitalCommonStock" xlink:title="definition: StockholdersEquityAbstract to AdditionalPaidInCapitalCommonStock" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityAbstract" xlink:to="RetainedEarningsAccumulatedDeficit" xlink:title="definition: StockholdersEquityAbstract to RetainedEarningsAccumulatedDeficit" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:title="AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityAbstract" xlink:to="AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:title="definition: StockholdersEquityAbstract to AccumulatedOtherComprehensiveIncomeLossNetOfTax" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityAbstract" xlink:to="StockholdersEquity" xlink:title="definition: StockholdersEquityAbstract to StockholdersEquity" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MinorityInterest" xlink:label="MinorityInterest" xlink:title="MinorityInterest"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:to="MinorityInterest" xlink:title="definition: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract to MinorityInterest" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:title="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:to="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:title="definition: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract to StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAndStockholdersEquityAbstract" xlink:to="LiabilitiesAndStockholdersEquity" xlink:title="definition: LiabilitiesAndStockholdersEquityAbstract to LiabilitiesAndStockholdersEquity" use="optional" order="60.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/CashFlows">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="StatementLineItems" xlink:to="StatementTable" xlink:title="definition: StatementLineItems to StatementTable" order="10.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="StatementScenarioAxis" xlink:title="StatementScenarioAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="StatementTable" xlink:to="StatementScenarioAxis" xlink:title="definition: StatementTable to StatementScenarioAxis" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="ScenarioUnspecifiedDomain" xlink:title="ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="StatementScenarioAxis" xlink:to="ScenarioUnspecifiedDomain" xlink:title="definition: StatementScenarioAxis to ScenarioUnspecifiedDomain" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="StatementOfCashFlowsAbstract" xlink:title="StatementOfCashFlowsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementLineItems" xlink:to="StatementOfCashFlowsAbstract" xlink:title="definition: StatementLineItems to StatementOfCashFlowsAbstract" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfCashFlowsAbstract" xlink:to="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="definition: StatementOfCashFlowsAbstract to NetCashProvidedByUsedInOperatingActivitiesAbstract" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="NetIncomeLoss" xlink:title="definition: NetCashProvidedByUsedInOperatingActivitiesAbstract to NetIncomeLoss" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="definition: NetCashProvidedByUsedInOperatingActivitiesAbstract to AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="DepreciationDepletionAndAmortization" xlink:title="DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="DepreciationDepletionAndAmortization" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to DepreciationDepletionAndAmortization" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="ShareBasedCompensation" xlink:title="ShareBasedCompensation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="ShareBasedCompensation" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to ShareBasedCompensation" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="ProvisionForDoubtfulAccounts" xlink:title="ProvisionForDoubtfulAccounts"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="ProvisionForDoubtfulAccounts" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to ProvisionForDoubtfulAccounts" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InventoryWriteDown" xlink:label="InventoryWriteDown" xlink:title="InventoryWriteDown"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="InventoryWriteDown" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to InventoryWriteDown" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="RestructuringCharges" xlink:title="RestructuringCharges"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="RestructuringCharges" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to RestructuringCharges" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="DeferredIncomeTaxExpenseBenefit" xlink:title="DeferredIncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="DeferredIncomeTaxExpenseBenefit" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to DeferredIncomeTaxExpenseBenefit" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:label="ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:title="ExcessTaxBenefitFromShareBasedCompensationOperatingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" use="optional" order="70.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther" xlink:label="AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther" xlink:title="AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther" use="optional" order="80.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="IncreaseDecreaseInOperatingCapitalAbstract" xlink:title="IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="IncreaseDecreaseInOperatingCapitalAbstract" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to IncreaseDecreaseInOperatingCapitalAbstract" use="optional" order="90.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables" xlink:label="IncreaseDecreaseInAccountsAndOtherReceivables" xlink:title="IncreaseDecreaseInAccountsAndOtherReceivables"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInAccountsAndOtherReceivables" xlink:title="definition: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInAccountsAndOtherReceivables" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="IncreaseDecreaseInInventories" xlink:title="IncreaseDecreaseInInventories"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInInventories" xlink:title="definition: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInInventories" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:label="IncreaseDecreaseInAccountsPayableTrade" xlink:title="IncreaseDecreaseInAccountsPayableTrade"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInAccountsPayableTrade" xlink:title="definition: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInAccountsPayableTrade" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:label="IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:title="IncreaseDecreaseInAccruedIncomeTaxesPayable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:title="definition: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInAccruedIncomeTaxesPayable" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringReservePeriodIncreaseDecrease" xlink:label="RestructuringReservePeriodIncreaseDecrease" xlink:title="RestructuringReservePeriodIncreaseDecrease"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="RestructuringReservePeriodIncreaseDecrease" xlink:title="definition: IncreaseDecreaseInOperatingCapitalAbstract to RestructuringReservePeriodIncreaseDecrease" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="IncreaseDecreaseInOtherOperatingCapitalNet" xlink:title="IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="IncreaseDecreaseInOtherOperatingCapitalNet" xlink:title="definition: IncreaseDecreaseInOperatingCapitalAbstract to IncreaseDecreaseInOtherOperatingCapitalNet" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ProvisionForDoubtfulAccountsAndWriteOffOfInventory" xlink:label="ProvisionForDoubtfulAccountsAndWriteOffOfInventory" xlink:title="ProvisionForDoubtfulAccountsAndWriteOffOfInventory"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="ProvisionForDoubtfulAccountsAndWriteOffOfInventory" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to ProvisionForDoubtfulAccountsAndWriteOffOfInventory" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ResearchAndDevelopmentInProcess" xlink:label="ResearchAndDevelopmentInProcess" xlink:title="ResearchAndDevelopmentInProcess"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="ResearchAndDevelopmentInProcess" xlink:title="definition: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract to ResearchAndDevelopmentInProcess" order="8010.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="NetCashProvidedByUsedInOperatingActivities" xlink:title="NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="NetCashProvidedByUsedInOperatingActivities" xlink:title="definition: NetCashProvidedByUsedInOperatingActivitiesAbstract to NetCashProvidedByUsedInOperatingActivities" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfCashFlowsAbstract" xlink:to="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:title="definition: StatementOfCashFlowsAbstract to NetCashProvidedByUsedInInvestingActivitiesAbstract" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromDivestitureOfBusinessesNetOfCashDivested" xlink:label="ProceedsFromDivestitureOfBusinessesNetOfCashDivested" xlink:title="ProceedsFromDivestitureOfBusinessesNetOfCashDivested"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="ProceedsFromDivestitureOfBusinessesNetOfCashDivested" xlink:title="definition: NetCashProvidedByUsedInInvestingActivitiesAbstract to ProceedsFromDivestitureOfBusinessesNetOfCashDivested" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="NetCashProvidedByUsedInInvestingActivities" xlink:title="NetCashProvidedByUsedInInvestingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="NetCashProvidedByUsedInInvestingActivities" xlink:title="definition: NetCashProvidedByUsedInInvestingActivitiesAbstract to NetCashProvidedByUsedInInvestingActivities" use="optional" order="70.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:title="PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:title="definition: NetCashProvidedByUsedInInvestingActivitiesAbstract to PaymentsToAcquireBusinessesNetOfCashAcquired" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:label="ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:title="ProceedsFromSaleAndMaturityOfMarketableSecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:title="definition: NetCashProvidedByUsedInInvestingActivitiesAbstract to ProceedsFromSaleAndMaturityOfMarketableSecurities" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsToAcquireMarketableSecurities" xlink:label="PaymentsToAcquireMarketableSecurities" xlink:title="PaymentsToAcquireMarketableSecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="PaymentsToAcquireMarketableSecurities" xlink:title="definition: NetCashProvidedByUsedInInvestingActivitiesAbstract to PaymentsToAcquireMarketableSecurities" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:label="ProceedsFromSaleOfProductiveAssets" xlink:title="ProceedsFromSaleOfProductiveAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="ProceedsFromSaleOfProductiveAssets" xlink:title="definition: NetCashProvidedByUsedInInvestingActivitiesAbstract to ProceedsFromSaleOfProductiveAssets" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="PaymentsToAcquireProductiveAssets" xlink:title="PaymentsToAcquireProductiveAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="PaymentsToAcquireProductiveAssets" xlink:title="definition: NetCashProvidedByUsedInInvestingActivitiesAbstract to PaymentsToAcquireProductiveAssets" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:title="CashAndCashEquivalentsPeriodIncreaseDecrease"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfCashFlowsAbstract" xlink:to="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:title="definition: StatementOfCashFlowsAbstract to CashAndCashEquivalentsPeriodIncreaseDecrease" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfCashFlowsAbstract" xlink:to="CashAndCashEquivalentsAtCarryingValue" xlink:title="definition: StatementOfCashFlowsAbstract to CashAndCashEquivalentsAtCarryingValue" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract" xlink:label="OtherNoncashInvestingAndFinancingItemsAbstract" xlink:title="OtherNoncashInvestingAndFinancingItemsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfCashFlowsAbstract" xlink:to="OtherNoncashInvestingAndFinancingItemsAbstract" xlink:title="definition: StatementOfCashFlowsAbstract to OtherNoncashInvestingAndFinancingItemsAbstract" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OptionsIssued" xlink:label="OptionsIssued" xlink:title="OptionsIssued"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="OtherNoncashInvestingAndFinancingItemsAbstract" xlink:to="OptionsIssued" xlink:title="definition: OtherNoncashInvestingAndFinancingItemsAbstract to OptionsIssued" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredDuringPeriod" xlink:label="NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredDuringPeriod" xlink:title="NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredDuringPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="OtherNoncashInvestingAndFinancingItemsAbstract" xlink:to="NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredDuringPeriod" xlink:title="definition: OtherNoncashInvestingAndFinancingItemsAbstract to NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredDuringPeriod" use="optional" order="8010.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CapitalLeaseObligationsIncurred" xlink:label="CapitalLeaseObligationsIncurred" xlink:title="CapitalLeaseObligationsIncurred"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="OtherNoncashInvestingAndFinancingItemsAbstract" xlink:to="CapitalLeaseObligationsIncurred" xlink:title="definition: OtherNoncashInvestingAndFinancingItemsAbstract to CapitalLeaseObligationsIncurred" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationOptionsIssued" xlink:label="NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationOptionsIssued" xlink:title="NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationOptionsIssued"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="OtherNoncashInvestingAndFinancingItemsAbstract" xlink:to="NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationOptionsIssued" xlink:title="definition: OtherNoncashInvestingAndFinancingItemsAbstract to NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationOptionsIssued" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredUnderFinancingArrangementDuringPeriod" xlink:label="NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredUnderFinancingArrangementDuringPeriod" xlink:title="NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredUnderFinancingArrangementDuringPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="OtherNoncashInvestingAndFinancingItemsAbstract" xlink:to="NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredUnderFinancingArrangementDuringPeriod" xlink:title="definition: OtherNoncashInvestingAndFinancingItemsAbstract to NoncashOrPartNoncashAcquisitionValueOfAssetsAcquiredUnderFinancingArrangementDuringPeriod" use="optional" order="8020.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:title="NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementOfCashFlowsAbstract" xlink:to="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:title="definition: StatementOfCashFlowsAbstract to NetCashProvidedByUsedInFinancingActivitiesAbstract" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt" xlink:label="ProceedsFromRepaymentsOfShortTermDebt" xlink:title="ProceedsFromRepaymentsOfShortTermDebt"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="ProceedsFromRepaymentsOfShortTermDebt" xlink:title="definition: NetCashProvidedByUsedInFinancingActivitiesAbstract to ProceedsFromRepaymentsOfShortTermDebt" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="ProceedsFromIssuanceOfLongTermDebt" xlink:title="ProceedsFromIssuanceOfLongTermDebt"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="ProceedsFromIssuanceOfLongTermDebt" xlink:title="definition: NetCashProvidedByUsedInFinancingActivitiesAbstract to ProceedsFromIssuanceOfLongTermDebt" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities" xlink:label="RepaymentsOfLongTermDebtAndCapitalSecurities" xlink:title="RepaymentsOfLongTermDebtAndCapitalSecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="RepaymentsOfLongTermDebtAndCapitalSecurities" xlink:title="definition: NetCashProvidedByUsedInFinancingActivitiesAbstract to RepaymentsOfLongTermDebtAndCapitalSecurities" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:label="ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:title="ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:title="definition: NetCashProvidedByUsedInFinancingActivitiesAbstract to ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="PaymentsForRepurchaseOfCommonStock" xlink:title="PaymentsForRepurchaseOfCommonStock"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="PaymentsForRepurchaseOfCommonStock" xlink:title="definition: NetCashProvidedByUsedInFinancingActivitiesAbstract to PaymentsForRepurchaseOfCommonStock" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:title="ExcessTaxBenefitFromShareBasedCompensationFinancingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:title="definition: NetCashProvidedByUsedInFinancingActivitiesAbstract to ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" use="optional" order="60.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="PaymentsOfDividendsCommonStock" xlink:title="PaymentsOfDividendsCommonStock"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="PaymentsOfDividendsCommonStock" xlink:title="definition: NetCashProvidedByUsedInFinancingActivitiesAbstract to PaymentsOfDividendsCommonStock" use="optional" order="70.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="NetCashProvidedByUsedInFinancingActivities" xlink:title="NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="NetCashProvidedByUsedInFinancingActivities" xlink:title="definition: NetCashProvidedByUsedInFinancingActivitiesAbstract to NetCashProvidedByUsedInFinancingActivities" use="optional" order="80.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/StatementOfStockholdersEquity">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="StatementLineItems" xlink:to="StatementTable" xlink:title="definition: StatementLineItems to StatementTable" order="10.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="StatementEquityComponentsAxis" xlink:title="StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="StatementTable" xlink:to="StatementEquityComponentsAxis" xlink:title="definition: StatementTable to StatementEquityComponentsAxis" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain" xlink:title="EquityComponentDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="StatementEquityComponentsAxis" xlink:to="EquityComponentDomain" xlink:title="definition: StatementEquityComponentsAxis to EquityComponentDomain" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="EquityComponentDomain_2" xlink:title="EquityComponentDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="StatementEquityComponentsAxis" xlink:to="EquityComponentDomain_2" xlink:title="definition: StatementEquityComponentsAxis to EquityComponentDomain" use="optional" priority="1" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ParentMember" xlink:label="ParentMember" xlink:title="ParentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityComponentDomain" xlink:to="ParentMember" xlink:title="definition: EquityComponentDomain to ParentMember" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockMember" xlink:label="CommonStockMember" xlink:title="CommonStockMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ParentMember" xlink:to="CommonStockMember" xlink:title="definition: ParentMember to CommonStockMember" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="AdditionalPaidInCapitalMember" xlink:title="AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ParentMember" xlink:to="AdditionalPaidInCapitalMember" xlink:title="definition: ParentMember to AdditionalPaidInCapitalMember" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="RetainedEarningsMember" xlink:title="RetainedEarningsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ParentMember" xlink:to="RetainedEarningsMember" xlink:title="definition: ParentMember to RetainedEarningsMember" use="optional" order="30.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="AccumulatedOtherComprehensiveIncomeMember" xlink:title="AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ParentMember" xlink:to="AccumulatedOtherComprehensiveIncomeMember" xlink:title="definition: ParentMember to AccumulatedOtherComprehensiveIncomeMember" use="optional" order="40.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ComprehensiveIncomeMember" xlink:label="ComprehensiveIncomeMember" xlink:title="ComprehensiveIncomeMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ParentMember" xlink:to="ComprehensiveIncomeMember" xlink:title="definition: ParentMember to ComprehensiveIncomeMember" use="optional" order="50.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PrepaidStockRepurchaseMember" xlink:label="PrepaidStockRepurchaseMember" xlink:title="PrepaidStockRepurchaseMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ParentMember" xlink:to="PrepaidStockRepurchaseMember" xlink:title="definition: ParentMember to PrepaidStockRepurchaseMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="NoncontrollingInterestMember" xlink:title="NoncontrollingInterestMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquityComponentDomain" xlink:to="NoncontrollingInterestMember" xlink:title="definition: EquityComponentDomain to NoncontrollingInterestMember" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StatementLineItems" xlink:to="IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="definition: StatementLineItems to IncreaseDecreaseInStockholdersEquityRollForward" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" use="optional" order="70.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_StockIssuedDuringPeriodValueShareBasedCompensationAndEmployeeStockPurchasePlan" xlink:label="StockIssuedDuringPeriodValueShareBasedCompensationAndEmployeeStockPurchasePlan" xlink:title="StockIssuedDuringPeriodValueShareBasedCompensationAndEmployeeStockPurchasePlan"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockIssuedDuringPeriodValueShareBasedCompensationAndEmployeeStockPurchasePlan" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to StockIssuedDuringPeriodValueShareBasedCompensationAndEmployeeStockPurchasePlan" use="optional" order="80.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_StockIssuedDuringPeriodSharesShareBasedCompensationAndEmployeeStockPurchasePlan" xlink:label="StockIssuedDuringPeriodSharesShareBasedCompensationAndEmployeeStockPurchasePlan" xlink:title="StockIssuedDuringPeriodSharesShareBasedCompensationAndEmployeeStockPurchasePlan"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockIssuedDuringPeriodValueShareBasedCompensationAndEmployeeStockPurchasePlan" xlink:to="StockIssuedDuringPeriodSharesShareBasedCompensationAndEmployeeStockPurchasePlan" xlink:title="definition: StockIssuedDuringPeriodValueShareBasedCompensationAndEmployeeStockPurchasePlan to StockIssuedDuringPeriodSharesShareBasedCompensationAndEmployeeStockPurchasePlan" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xlink:label="StockRepurchasedAndRetiredDuringPeriodValue" xlink:title="StockRepurchasedAndRetiredDuringPeriodValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockRepurchasedAndRetiredDuringPeriodValue" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to StockRepurchasedAndRetiredDuringPeriodValue" use="optional" order="90.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation" xlink:label="AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation" xlink:title="AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation" use="optional" order="100.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="DividendsCommonStockCash" xlink:title="DividendsCommonStockCash"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="DividendsCommonStockCash" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to DividendsCommonStockCash" use="optional" order="110.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:title="AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" use="optional" order="120.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EffectOnRetainedEarningsAccumulatedDeficitDueToChangeInMeasurementDateNetOfTax" xlink:label="EffectOnRetainedEarningsAccumulatedDeficitDueToChangeInMeasurementDateNetOfTax" xlink:title="EffectOnRetainedEarningsAccumulatedDeficitDueToChangeInMeasurementDateNetOfTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="EffectOnRetainedEarningsAccumulatedDeficitDueToChangeInMeasurementDateNetOfTax" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to EffectOnRetainedEarningsAccumulatedDeficitDueToChangeInMeasurementDateNetOfTax" priority="1" order="130.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:label="StockholdersEquityPeriodIncreaseDecrease" xlink:title="StockholdersEquityPeriodIncreaseDecrease"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="StockholdersEquityPeriodIncreaseDecrease" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to StockholdersEquityPeriodIncreaseDecrease" use="optional" order="150.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:label="StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:title="StockIssuedDuringPeriodSharesPeriodIncreaseDecrease"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockholdersEquityPeriodIncreaseDecrease" xlink:to="StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:title="definition: StockholdersEquityPeriodIncreaseDecrease to StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax" xlink:label="OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax" xlink:title="OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to OtherComprehensiveIncomeMinimumPensionLiabilityNetAdjustmentNetOfTax" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CumulativeEffectOfInitialAdoptionOfSFAS158" xlink:label="CumulativeEffectOfInitialAdoptionOfSFAS158" xlink:title="CumulativeEffectOfInitialAdoptionOfSFAS158"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="CumulativeEffectOfInitialAdoptionOfSFAS158" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to CumulativeEffectOfInitialAdoptionOfSFAS158" use="optional" order="8020.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ChangesInOwnershipOfNoncontrollingInterests" xlink:label="ChangesInOwnershipOfNoncontrollingInterests" xlink:title="ChangesInOwnershipOfNoncontrollingInterests"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="ChangesInOwnershipOfNoncontrollingInterests" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to ChangesInOwnershipOfNoncontrollingInterests" order="140.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CumulativeEffectOfInitialAdoptionOfFIN48" xlink:label="CumulativeEffectOfInitialAdoptionOfFIN48" xlink:title="CumulativeEffectOfInitialAdoptionOfFIN48"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="CumulativeEffectOfInitialAdoptionOfFIN48" xlink:title="definition: IncreaseDecreaseInStockholdersEquityRollForward to CumulativeEffectOfInitialAdoptionOfFIN48" order="135.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureSegmentInformationDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="RevenuesAbstract" xlink:title="RevenuesAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Revenues" xlink:label="Revenues" xlink:title="Revenues"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RevenuesAbstract" xlink:to="Revenues" xlink:title="definition: RevenuesAbstract to Revenues" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingInformationRevenue" xlink:label="SegmentReportingInformationRevenue" xlink:title="SegmentReportingInformationRevenue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RevenuesAbstract" xlink:to="SegmentReportingInformationRevenue" xlink:title="definition: RevenuesAbstract to SegmentReportingInformationRevenue" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingReconcilingItemsRevenue" xlink:label="SegmentReportingReconcilingItemsRevenue" xlink:title="SegmentReportingReconcilingItemsRevenue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RevenuesAbstract" xlink:to="SegmentReportingReconcilingItemsRevenue" xlink:title="definition: RevenuesAbstract to SegmentReportingReconcilingItemsRevenue" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingSegmentOperatingProfitLoss" xlink:label="SegmentReportingSegmentOperatingProfitLoss" xlink:title="SegmentReportingSegmentOperatingProfitLoss"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RevenuesAbstract" xlink:to="SegmentReportingSegmentOperatingProfitLoss" xlink:title="definition: RevenuesAbstract to SegmentReportingSegmentOperatingProfitLoss" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="AssetsAbstract" xlink:title="AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingReconcilingItemsAssets" xlink:label="SegmentReportingReconcilingItemsAssets" xlink:title="SegmentReportingReconcilingItemsAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="SegmentReportingReconcilingItemsAssets" xlink:title="definition: AssetsAbstract to SegmentReportingReconcilingItemsAssets" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PercentageOfIncreaseInSegmentAssets" xlink:label="PercentageOfIncreaseInSegmentAssets" xlink:title="PercentageOfIncreaseInSegmentAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="PercentageOfIncreaseInSegmentAssets" xlink:title="definition: AssetsAbstract to PercentageOfIncreaseInSegmentAssets" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingInformationAssets" xlink:label="SegmentReportingInformationAssets" xlink:title="SegmentReportingInformationAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="SegmentReportingInformationAssets" xlink:title="definition: AssetsAbstract to SegmentReportingInformationAssets" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PercentageOfIncreaseDecreaseInSegmentAssets" xlink:label="PercentageOfIncreaseDecreaseInSegmentAssets" xlink:title="PercentageOfIncreaseDecreaseInSegmentAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="PercentageOfIncreaseDecreaseInSegmentAssets" xlink:title="definition: AssetsAbstract to PercentageOfIncreaseDecreaseInSegmentAssets" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="SegmentReportingInformationLineItems" xlink:title="SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:title="ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="SegmentReportingInformationLineItems" xlink:to="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:title="definition: SegmentReportingInformationLineItems to ScheduleOfSegmentReportingInformationBySegmentTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="StatementBusinessSegmentsAxis" xlink:title="StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="StatementBusinessSegmentsAxis" xlink:title="definition: ScheduleOfSegmentReportingInformationBySegmentTable to StatementBusinessSegmentsAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentBusinessDomain" xlink:label="SegmentBusinessDomain" xlink:title="SegmentBusinessDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="StatementBusinessSegmentsAxis" xlink:to="SegmentBusinessDomain" xlink:title="definition: StatementBusinessSegmentsAxis to SegmentBusinessDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AggregateSegmentMember" xlink:label="AggregateSegmentMember" xlink:title="AggregateSegmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="AggregateSegmentMember" xlink:title="definition: SegmentBusinessDomain to AggregateSegmentMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EnterpriseBusinessMember" xlink:label="EnterpriseBusinessMember" xlink:title="EnterpriseBusinessMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AggregateSegmentMember" xlink:to="EnterpriseBusinessMember" xlink:title="definition: AggregateSegmentMember to EnterpriseBusinessMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ServicesSegmentMember" xlink:label="ServicesSegmentMember" xlink:title="ServicesSegmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EnterpriseBusinessMember" xlink:to="ServicesSegmentMember" xlink:title="definition: EnterpriseBusinessMember to ServicesSegmentMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EnterpriseStorageServersAndNetworkingMember" xlink:label="EnterpriseStorageServersAndNetworkingMember" xlink:title="EnterpriseStorageServersAndNetworkingMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EnterpriseBusinessMember" xlink:to="EnterpriseStorageServersAndNetworkingMember" xlink:title="definition: EnterpriseBusinessMember to EnterpriseStorageServersAndNetworkingMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HPSoftwareMember" xlink:label="HPSoftwareMember" xlink:title="HPSoftwareMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EnterpriseBusinessMember" xlink:to="HPSoftwareMember" xlink:title="definition: EnterpriseBusinessMember to HPSoftwareMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ImagingAndPrintingGroupMember" xlink:label="ImagingAndPrintingGroupMember" xlink:title="ImagingAndPrintingGroupMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AggregateSegmentMember" xlink:to="ImagingAndPrintingGroupMember" xlink:title="definition: AggregateSegmentMember to ImagingAndPrintingGroupMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PersonalSystemsGroupMember" xlink:label="PersonalSystemsGroupMember" xlink:title="PersonalSystemsGroupMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AggregateSegmentMember" xlink:to="PersonalSystemsGroupMember" xlink:title="definition: AggregateSegmentMember to PersonalSystemsGroupMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancialServicesMember" xlink:label="FinancialServicesMember" xlink:title="FinancialServicesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AggregateSegmentMember" xlink:to="FinancialServicesMember" xlink:title="definition: AggregateSegmentMember to FinancialServicesMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CorporateInvestmentsMember" xlink:label="CorporateInvestmentsMember" xlink:title="CorporateInvestmentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AggregateSegmentMember" xlink:to="CorporateInvestmentsMember" xlink:title="definition: AggregateSegmentMember to CorporateInvestmentsMember" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessIntersegmentEliminationsMember" xlink:label="BusinessIntersegmentEliminationsMember" xlink:title="BusinessIntersegmentEliminationsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="BusinessIntersegmentEliminationsMember" xlink:title="definition: SegmentBusinessDomain to BusinessIntersegmentEliminationsMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SegmentBusinessUnitAxis" xlink:label="SegmentBusinessUnitAxis" xlink:title="SegmentBusinessUnitAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="SegmentBusinessUnitAxis" xlink:title="definition: ScheduleOfSegmentReportingInformationBySegmentTable to SegmentBusinessUnitAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessUnitDomain" xlink:label="BusinessUnitDomain" xlink:title="BusinessUnitDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="SegmentBusinessUnitAxis" xlink:to="BusinessUnitDomain" xlink:title="definition: SegmentBusinessUnitAxis to BusinessUnitDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessUnitDomain" xlink:label="BusinessUnitDomain_2" xlink:title="BusinessUnitDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="SegmentBusinessUnitAxis" xlink:to="BusinessUnitDomain_2" xlink:title="definition: SegmentBusinessUnitAxis to BusinessUnitDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InfrastructureTechnologyOutsourcingMember" xlink:label="InfrastructureTechnologyOutsourcingMember" xlink:title="InfrastructureTechnologyOutsourcingMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="InfrastructureTechnologyOutsourcingMember" xlink:title="definition: BusinessUnitDomain to InfrastructureTechnologyOutsourcingMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TechnologyServicesMember" xlink:label="TechnologyServicesMember" xlink:title="TechnologyServicesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="TechnologyServicesMember" xlink:title="definition: BusinessUnitDomain to TechnologyServicesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ApplicationServicesMember" xlink:label="ApplicationServicesMember" xlink:title="ApplicationServicesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="ApplicationServicesMember" xlink:title="definition: BusinessUnitDomain to ApplicationServicesMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessProcessOutsourcingMember" xlink:label="BusinessProcessOutsourcingMember" xlink:title="BusinessProcessOutsourcingMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="BusinessProcessOutsourcingMember" xlink:title="definition: BusinessUnitDomain to BusinessProcessOutsourcingMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherServicesSegmentMember" xlink:label="OtherServicesSegmentMember" xlink:title="OtherServicesSegmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="OtherServicesSegmentMember" xlink:title="definition: BusinessUnitDomain to OtherServicesSegmentMember" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_IndustryStandardServersMember" xlink:label="IndustryStandardServersMember" xlink:title="IndustryStandardServersMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="IndustryStandardServersMember" xlink:title="definition: BusinessUnitDomain to IndustryStandardServersMember" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_StorageMember" xlink:label="StorageMember" xlink:title="StorageMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="StorageMember" xlink:title="definition: BusinessUnitDomain to StorageMember" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessCriticalSystemsMember" xlink:label="BusinessCriticalSystemsMember" xlink:title="BusinessCriticalSystemsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="BusinessCriticalSystemsMember" xlink:title="definition: BusinessUnitDomain to BusinessCriticalSystemsMember" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessTechnologyOptimizationMember" xlink:label="BusinessTechnologyOptimizationMember" xlink:title="BusinessTechnologyOptimizationMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="BusinessTechnologyOptimizationMember" xlink:title="definition: BusinessUnitDomain to BusinessTechnologyOptimizationMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherSoftwareMember" xlink:label="OtherSoftwareMember" xlink:title="OtherSoftwareMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="OtherSoftwareMember" xlink:title="definition: BusinessUnitDomain to OtherSoftwareMember" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NotebooksMember" xlink:label="NotebooksMember" xlink:title="NotebooksMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="NotebooksMember" xlink:title="definition: BusinessUnitDomain to NotebooksMember" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DesktopsMember" xlink:label="DesktopsMember" xlink:title="DesktopsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="DesktopsMember" xlink:title="definition: BusinessUnitDomain to DesktopsMember" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_WorkstationsMember" xlink:label="WorkstationsMember" xlink:title="WorkstationsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="WorkstationsMember" xlink:title="definition: BusinessUnitDomain to WorkstationsMember" use="optional" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HandheldsMember" xlink:label="HandheldsMember" xlink:title="HandheldsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="HandheldsMember" xlink:title="definition: BusinessUnitDomain to HandheldsMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherPersonalSystemsMember" xlink:label="OtherPersonalSystemsMember" xlink:title="OtherPersonalSystemsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="OtherPersonalSystemsMember" xlink:title="definition: BusinessUnitDomain to OtherPersonalSystemsMember" use="optional" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SuppliesMember" xlink:label="SuppliesMember" xlink:title="SuppliesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="SuppliesMember" xlink:title="definition: BusinessUnitDomain to SuppliesMember" use="optional" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CommercialHardwareMember" xlink:label="CommercialHardwareMember" xlink:title="CommercialHardwareMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="CommercialHardwareMember" xlink:title="definition: BusinessUnitDomain to CommercialHardwareMember" use="optional" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ConsumerHardwareMember" xlink:label="ConsumerHardwareMember" xlink:title="ConsumerHardwareMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="ConsumerHardwareMember" xlink:title="definition: BusinessUnitDomain to ConsumerHardwareMember" use="optional" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HPNetworkingMember" xlink:label="HPNetworkingMember" xlink:title="HPNetworkingMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessUnitDomain" xlink:to="HPNetworkingMember" xlink:title="definition: BusinessUnitDomain to HPNetworkingMember" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="StatementGeographicalAxis" xlink:title="StatementGeographicalAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="StatementGeographicalAxis" xlink:title="definition: ScheduleOfSegmentReportingInformationBySegmentTable to StatementGeographicalAxis" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="SegmentGeographicalDomain" xlink:title="SegmentGeographicalDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="StatementGeographicalAxis" xlink:to="SegmentGeographicalDomain" xlink:title="definition: StatementGeographicalAxis to SegmentGeographicalDomain" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="SegmentGeographicalDomain_2" xlink:title="SegmentGeographicalDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="StatementGeographicalAxis" xlink:to="SegmentGeographicalDomain_2" xlink:title="definition: StatementGeographicalAxis to SegmentGeographicalDomain" use="optional" priority="1" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/country-2009-01-31.xsd#country_US" xlink:label="US" xlink:title="US"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentGeographicalDomain" xlink:to="US" xlink:title="definition: SegmentGeographicalDomain to US" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NonUSMember" xlink:label="NonUSMember" xlink:title="NonUSMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentGeographicalDomain" xlink:to="NonUSMember" xlink:title="definition: SegmentGeographicalDomain to NonUSMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SegmentInformationDisclosureAbstract" xlink:label="SegmentInformationDisclosureAbstract" xlink:title="SegmentInformationDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationLineItems" xlink:to="SegmentInformationDisclosureAbstract" xlink:title="definition: SegmentReportingInformationLineItems to SegmentInformationDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SegmentsNumber" xlink:label="SegmentsNumber" xlink:title="SegmentsNumber"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="SegmentsNumber" xlink:title="definition: SegmentInformationDisclosureAbstract to SegmentsNumber" use="optional" order="1.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="RevenuesAbstract" xlink:title="definition: SegmentInformationDisclosureAbstract to RevenuesAbstract" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:label="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:title="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:title="definition: SegmentInformationDisclosureAbstract to SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedAmount" xlink:label="SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedAmount" xlink:title="SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedAmount" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedAmount" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_UnallocatedCostsRelatedToStockBasedCompensationExpense" xlink:label="UnallocatedCostsRelatedToStockBasedCompensationExpense" xlink:title="UnallocatedCostsRelatedToStockBasedCompensationExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="UnallocatedCostsRelatedToStockBasedCompensationExpense" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to UnallocatedCostsRelatedToStockBasedCompensationExpense" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpense" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpense" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="FiniteLivedIntangibleAssetsAmortizationExpense" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to FiniteLivedIntangibleAssetsAmortizationExpense" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ResearchAndDevelopmentInProcess" xlink:label="ResearchAndDevelopmentInProcess" xlink:title="ResearchAndDevelopmentInProcess"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="ResearchAndDevelopmentInProcess" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to ResearchAndDevelopmentInProcess" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="RestructuringCharges" xlink:title="RestructuringCharges"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="RestructuringCharges" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to RestructuringCharges" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessCombinationAcquisitionRelatedCharges" xlink:label="BusinessCombinationAcquisitionRelatedCharges" xlink:title="BusinessCombinationAcquisitionRelatedCharges"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="BusinessCombinationAcquisitionRelatedCharges" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to BusinessCombinationAcquisitionRelatedCharges" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="NonoperatingIncomeExpense" xlink:title="NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="NonoperatingIncomeExpense" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to NonoperatingIncomeExpense" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_IncomeLossBeforeIncomeTax" xlink:label="IncomeLossBeforeIncomeTax" xlink:title="IncomeLossBeforeIncomeTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="IncomeLossBeforeIncomeTax" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to IncomeLossBeforeIncomeTax" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments" xlink:label="DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments" xlink:title="DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract" xlink:to="DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments" xlink:title="definition: SegmentReportingInformationIncomeLossBeforeIncomeTaxesAbstract to DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments" use="optional" order="8000.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="AssetsAbstract" xlink:title="definition: SegmentInformationDisclosureAbstract to AssetsAbstract" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessUnitsNumber" xlink:label="BusinessUnitsNumber" xlink:title="BusinessUnitsNumber"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="BusinessUnitsNumber" xlink:title="definition: SegmentInformationDisclosureAbstract to BusinessUnitsNumber" use="optional" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureFairValueDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="AssetsAbstract" xlink:title="AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TimeDepositsAtCarryingValue" xlink:label="TimeDepositsAtCarryingValue" xlink:title="TimeDepositsAtCarryingValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="TimeDepositsAtCarryingValue" xlink:title="definition: AssetsAbstract to TimeDepositsAtCarryingValue" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommercialPaperAtCarryingValue" xlink:label="CommercialPaperAtCarryingValue" xlink:title="CommercialPaperAtCarryingValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="CommercialPaperAtCarryingValue" xlink:title="definition: AssetsAbstract to CommercialPaperAtCarryingValue" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MoneyMarketFundsAtCarryingValue" xlink:label="MoneyMarketFundsAtCarryingValue" xlink:title="MoneyMarketFundsAtCarryingValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="MoneyMarketFundsAtCarryingValue" xlink:title="definition: AssetsAbstract to MoneyMarketFundsAtCarryingValue" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_USGovernmentSecuritiesAtCarryingValue" xlink:label="USGovernmentSecuritiesAtCarryingValue" xlink:title="USGovernmentSecuritiesAtCarryingValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="USGovernmentSecuritiesAtCarryingValue" xlink:title="definition: AssetsAbstract to USGovernmentSecuritiesAtCarryingValue" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsMeasuredOnRecurringBasisForeignBonds" xlink:label="FairValueAssetsMeasuredOnRecurringBasisForeignBonds" xlink:title="FairValueAssetsMeasuredOnRecurringBasisForeignBonds"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="FairValueAssetsMeasuredOnRecurringBasisForeignBonds" xlink:title="definition: AssetsAbstract to FairValueAssetsMeasuredOnRecurringBasisForeignBonds" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsMeasuredOnRecurringBasisCorporateBondsAndOtherDebtSecurities" xlink:label="FairValueAssetsMeasuredOnRecurringBasisCorporateBondsAndOtherDebtSecurities" xlink:title="FairValueAssetsMeasuredOnRecurringBasisCorporateBondsAndOtherDebtSecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="FairValueAssetsMeasuredOnRecurringBasisCorporateBondsAndOtherDebtSecurities" xlink:title="definition: AssetsAbstract to FairValueAssetsMeasuredOnRecurringBasisCorporateBondsAndOtherDebtSecurities" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestRateDerivativeAssetsAtFairValue" xlink:label="InterestRateDerivativeAssetsAtFairValue" xlink:title="InterestRateDerivativeAssetsAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="InterestRateDerivativeAssetsAtFairValue" xlink:title="definition: AssetsAbstract to InterestRateDerivativeAssetsAtFairValue" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignCurrencyDerivativeAssetsAtFairValue" xlink:label="ForeignCurrencyDerivativeAssetsAtFairValue" xlink:title="ForeignCurrencyDerivativeAssetsAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="ForeignCurrencyDerivativeAssetsAtFairValue" xlink:title="definition: AssetsAbstract to ForeignCurrencyDerivativeAssetsAtFairValue" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsAssets" xlink:label="FairValueAssetsMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsAssets" xlink:title="FairValueAssetsMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="FairValueAssetsMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsAssets" xlink:title="definition: AssetsAbstract to FairValueAssetsMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsAssets" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsMeasuredOnRecurringBasisAssets" xlink:label="FairValueAssetsMeasuredOnRecurringBasisAssets" xlink:title="FairValueAssetsMeasuredOnRecurringBasisAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="FairValueAssetsMeasuredOnRecurringBasisAssets" xlink:title="definition: AssetsAbstract to FairValueAssetsMeasuredOnRecurringBasisAssets" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsMeasuredOnRecurringBasisMoneyMarketFunds" xlink:label="FairValueAssetsMeasuredOnRecurringBasisMoneyMarketFunds" xlink:title="FairValueAssetsMeasuredOnRecurringBasisMoneyMarketFunds"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="FairValueAssetsMeasuredOnRecurringBasisMoneyMarketFunds" xlink:title="definition: AssetsAbstract to FairValueAssetsMeasuredOnRecurringBasisMoneyMarketFunds" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsMeasuredOnRecurringBasisTimeDeposits" xlink:label="FairValueAssetsMeasuredOnRecurringBasisTimeDeposits" xlink:title="FairValueAssetsMeasuredOnRecurringBasisTimeDeposits"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="FairValueAssetsMeasuredOnRecurringBasisTimeDeposits" xlink:title="definition: AssetsAbstract to FairValueAssetsMeasuredOnRecurringBasisTimeDeposits" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsMeasuredOnRecurringBasisCommercialPaper" xlink:label="FairValueAssetsMeasuredOnRecurringBasisCommercialPaper" xlink:title="FairValueAssetsMeasuredOnRecurringBasisCommercialPaper"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="FairValueAssetsMeasuredOnRecurringBasisCommercialPaper" xlink:title="definition: AssetsAbstract to FairValueAssetsMeasuredOnRecurringBasisCommercialPaper" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AvailableForSaleSecuritiesEquitySecuritiesAndOther" xlink:label="AvailableForSaleSecuritiesEquitySecuritiesAndOther" xlink:title="AvailableForSaleSecuritiesEquitySecuritiesAndOther"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AssetsAbstract" xlink:to="AvailableForSaleSecuritiesEquitySecuritiesAndOther" xlink:title="definition: AssetsAbstract to AvailableForSaleSecuritiesEquitySecuritiesAndOther" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems" xlink:to="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems to FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" xlink:to="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable to FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis" xlink:to="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis to FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain_2" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis" xlink:to="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain_2" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsAxis to FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="FairValueInputsLevel1Member" xlink:title="FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" xlink:to="FairValueInputsLevel1Member" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain to FairValueInputsLevel1Member" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="FairValueInputsLevel2Member" xlink:title="FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" xlink:to="FairValueInputsLevel2Member" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain to FairValueInputsLevel2Member" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="FairValueInputsLevel3Member" xlink:title="FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" xlink:to="FairValueInputsLevel3Member" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain to FairValueInputsLevel3Member" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:label="EstimateOfFairValueFairValueDisclosureMember" xlink:title="EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain" xlink:to="EstimateOfFairValueFairValueDisclosureMember" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDisclosureItemsDomain to EstimateOfFairValueFairValueDisclosureMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueDisclosureAbstract" xlink:label="FairValueDisclosureAbstract" xlink:title="FairValueDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems" xlink:to="FairValueDisclosureAbstract" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItems to FairValueDisclosureAbstract" order="2.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueDisclosureAbstract" xlink:to="AssetsAbstract" xlink:title="definition: FairValueDisclosureAbstract to AssetsAbstract" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="LiabilitiesAbstract" xlink:title="LiabilitiesAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueDisclosureAbstract" xlink:to="LiabilitiesAbstract" xlink:title="definition: FairValueDisclosureAbstract to LiabilitiesAbstract" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestRateDerivativeLiabilitiesAtFairValue" xlink:label="InterestRateDerivativeLiabilitiesAtFairValue" xlink:title="InterestRateDerivativeLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAbstract" xlink:to="InterestRateDerivativeLiabilitiesAtFairValue" xlink:title="definition: LiabilitiesAbstract to InterestRateDerivativeLiabilitiesAtFairValue" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignCurrencyDerivativeLiabilitiesAtFairValue" xlink:label="ForeignCurrencyDerivativeLiabilitiesAtFairValue" xlink:title="ForeignCurrencyDerivativeLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAbstract" xlink:to="ForeignCurrencyDerivativeLiabilitiesAtFairValue" xlink:title="definition: LiabilitiesAbstract to ForeignCurrencyDerivativeLiabilitiesAtFairValue" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueLiabilitiesMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsLiabilities" xlink:label="FairValueLiabilitiesMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsLiabilities" xlink:title="FairValueLiabilitiesMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAbstract" xlink:to="FairValueLiabilitiesMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsLiabilities" xlink:title="definition: LiabilitiesAbstract to FairValueLiabilitiesMeasuredOnRecurringBasisOtherDerivativeFinancialInstrumentsLiabilities" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueLiabilitiesMeasuredOnRecurringBasisLiabilities" xlink:label="FairValueLiabilitiesMeasuredOnRecurringBasisLiabilities" xlink:title="FairValueLiabilitiesMeasuredOnRecurringBasisLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LiabilitiesAbstract" xlink:to="FairValueLiabilitiesMeasuredOnRecurringBasisLiabilities" xlink:title="definition: LiabilitiesAbstract to FairValueLiabilitiesMeasuredOnRecurringBasisLiabilities" use="optional" order="4.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureGoodwillAndPurchasedIntangibleAssetsDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="StatementBusinessSegmentsAxis" xlink:title="StatementBusinessSegmentsAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentBusinessDomain" xlink:label="SegmentBusinessDomain" xlink:title="SegmentBusinessDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="StatementBusinessSegmentsAxis" xlink:to="SegmentBusinessDomain" xlink:title="definition: StatementBusinessSegmentsAxis to SegmentBusinessDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentBusinessDomain" xlink:label="SegmentBusinessDomain_2" xlink:title="SegmentBusinessDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="StatementBusinessSegmentsAxis" xlink:to="SegmentBusinessDomain_2" xlink:title="definition: StatementBusinessSegmentsAxis to SegmentBusinessDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ServicesSegmentMember" xlink:label="ServicesSegmentMember" xlink:title="ServicesSegmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="ServicesSegmentMember" xlink:title="definition: SegmentBusinessDomain to ServicesSegmentMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EnterpriseStorageServersAndNetworkingMember" xlink:label="EnterpriseStorageServersAndNetworkingMember" xlink:title="EnterpriseStorageServersAndNetworkingMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="EnterpriseStorageServersAndNetworkingMember" xlink:title="definition: SegmentBusinessDomain to EnterpriseStorageServersAndNetworkingMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HPSoftwareMember" xlink:label="HPSoftwareMember" xlink:title="HPSoftwareMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="HPSoftwareMember" xlink:title="definition: SegmentBusinessDomain to HPSoftwareMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PersonalSystemsGroupMember" xlink:label="PersonalSystemsGroupMember" xlink:title="PersonalSystemsGroupMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="PersonalSystemsGroupMember" xlink:title="definition: SegmentBusinessDomain to PersonalSystemsGroupMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ImagingAndPrintingGroupMember" xlink:label="ImagingAndPrintingGroupMember" xlink:title="ImagingAndPrintingGroupMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="ImagingAndPrintingGroupMember" xlink:title="definition: SegmentBusinessDomain to ImagingAndPrintingGroupMember" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CorporateInvestmentsMember" xlink:label="CorporateInvestmentsMember" xlink:title="CorporateInvestmentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="CorporateInvestmentsMember" xlink:title="definition: SegmentBusinessDomain to CorporateInvestmentsMember" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancialServicesMember" xlink:label="FinancialServicesMember" xlink:title="FinancialServicesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="FinancialServicesMember" xlink:title="definition: SegmentBusinessDomain to FinancialServicesMember" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="GoodwillLineItems" xlink:title="GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="ScheduleOfGoodwillTable" xlink:title="ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="GoodwillLineItems" xlink:to="ScheduleOfGoodwillTable" xlink:title="definition: GoodwillLineItems to ScheduleOfGoodwillTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfGoodwillTable" xlink:to="StatementBusinessSegmentsAxis" xlink:title="definition: ScheduleOfGoodwillTable to StatementBusinessSegmentsAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfGoodwillTable" xlink:to="BusinessAcquisitionAxis" xlink:title="definition: ScheduleOfGoodwillTable to BusinessAcquisitionAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="BusinessAcquisitionAxis" xlink:to="BusinessAcquisitionAcquireeDomain" xlink:title="definition: BusinessAcquisitionAxis to BusinessAcquisitionAcquireeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionOf3ComMember" xlink:label="AcquisitionOf3ComMember" xlink:title="AcquisitionOf3ComMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="AcquisitionOf3ComMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to AcquisitionOf3ComMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquistionOfPalmMember" xlink:label="AcquistionOfPalmMember" xlink:title="AcquistionOfPalmMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="AcquistionOfPalmMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to AcquistionOfPalmMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EDSMember" xlink:label="EDSMember" xlink:title="EDSMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="EDSMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to EDSMember" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquistionOfVerticaSystemsIncMember" xlink:label="AcquistionOfVerticaSystemsIncMember" xlink:title="AcquistionOfVerticaSystemsIncMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="AcquistionOfVerticaSystemsIncMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to AcquistionOfVerticaSystemsIncMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:label="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:title="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="GoodwillLineItems" xlink:to="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:title="definition: GoodwillLineItems to FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="GoodwillRollForward" xlink:title="GoodwillRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="GoodwillRollForward" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to GoodwillRollForward" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Goodwill" xlink:label="Goodwill" xlink:title="Goodwill"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="GoodwillRollForward" xlink:to="Goodwill" xlink:title="definition: GoodwillRollForward to Goodwill" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments" xlink:label="GoodwillTranslationAndPurchaseAccountingAdjustments" xlink:title="GoodwillTranslationAndPurchaseAccountingAdjustments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="GoodwillRollForward" xlink:to="GoodwillTranslationAndPurchaseAccountingAdjustments" xlink:title="definition: GoodwillRollForward to GoodwillTranslationAndPurchaseAccountingAdjustments" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="GoodwillAcquiredDuringPeriod" xlink:title="GoodwillAcquiredDuringPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="GoodwillRollForward" xlink:to="GoodwillAcquiredDuringPeriod" xlink:title="definition: GoodwillRollForward to GoodwillAcquiredDuringPeriod" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_GoodwillPurchaseAccountingAdjustment" xlink:label="GoodwillPurchaseAccountingAdjustment" xlink:title="GoodwillPurchaseAccountingAdjustment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="GoodwillPurchaseAccountingAdjustment" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to GoodwillPurchaseAccountingAdjustment" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_GoodwillTranslationAdjustments" xlink:label="GoodwillTranslationAdjustments" xlink:title="GoodwillTranslationAdjustments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="GoodwillTranslationAdjustments" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to GoodwillTranslationAdjustments" order="8001.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureSegmentInformationDetails2">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SegmentInformationDisclosureAbstract" xlink:label="SegmentInformationDisclosureAbstract" xlink:title="SegmentInformationDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TotalNetRevenueOfMaximumSingleCustomerPercentage" xlink:label="TotalNetRevenueOfMaximumSingleCustomerPercentage" xlink:title="TotalNetRevenueOfMaximumSingleCustomerPercentage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="TotalNetRevenueOfMaximumSingleCustomerPercentage" xlink:title="definition: SegmentInformationDisclosureAbstract to TotalNetRevenueOfMaximumSingleCustomerPercentage" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TotalConsolidatedNetRevenueOfMaximumSingleCountryPercentage" xlink:label="TotalConsolidatedNetRevenueOfMaximumSingleCountryPercentage" xlink:title="TotalConsolidatedNetRevenueOfMaximumSingleCountryPercentage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="TotalConsolidatedNetRevenueOfMaximumSingleCountryPercentage" xlink:title="definition: SegmentInformationDisclosureAbstract to TotalConsolidatedNetRevenueOfMaximumSingleCountryPercentage" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TotalConsolidatedNetAssetsOfMaximumSingleCountryPercentage" xlink:label="TotalConsolidatedNetAssetsOfMaximumSingleCountryPercentage" xlink:title="TotalConsolidatedNetAssetsOfMaximumSingleCountryPercentage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="TotalConsolidatedNetAssetsOfMaximumSingleCountryPercentage" xlink:title="definition: SegmentInformationDisclosureAbstract to TotalConsolidatedNetAssetsOfMaximumSingleCountryPercentage" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TotalConsolidatedNetPropertyPlantAndEquipmentOfMaximumSingleCountryPercentage" xlink:label="TotalConsolidatedNetPropertyPlantAndEquipmentOfMaximumSingleCountryPercentage" xlink:title="TotalConsolidatedNetPropertyPlantAndEquipmentOfMaximumSingleCountryPercentage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="TotalConsolidatedNetPropertyPlantAndEquipmentOfMaximumSingleCountryPercentage" xlink:title="definition: SegmentInformationDisclosureAbstract to TotalConsolidatedNetPropertyPlantAndEquipmentOfMaximumSingleCountryPercentage" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ConcentrationRiskPercentageAssetsMinimum" xlink:label="ConcentrationRiskPercentageAssetsMinimum" xlink:title="ConcentrationRiskPercentageAssetsMinimum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="ConcentrationRiskPercentageAssetsMinimum" xlink:title="definition: SegmentInformationDisclosureAbstract to ConcentrationRiskPercentageAssetsMinimum" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ConcentrationRiskPercentagePropertyMinimum" xlink:label="ConcentrationRiskPercentagePropertyMinimum" xlink:title="ConcentrationRiskPercentagePropertyMinimum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="ConcentrationRiskPercentagePropertyMinimum" xlink:title="definition: SegmentInformationDisclosureAbstract to ConcentrationRiskPercentagePropertyMinimum" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ConcentrationRiskPercentageRevenueMinimum" xlink:label="ConcentrationRiskPercentageRevenueMinimum" xlink:title="ConcentrationRiskPercentageRevenueMinimum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentInformationDisclosureAbstract" xlink:to="ConcentrationRiskPercentageRevenueMinimum" xlink:title="definition: SegmentInformationDisclosureAbstract to ConcentrationRiskPercentageRevenueMinimum" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="ConcentrationRiskLineItems" xlink:title="ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="ConcentrationRiskTable" xlink:title="ConcentrationRiskTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ConcentrationRiskLineItems" xlink:to="ConcentrationRiskTable" xlink:title="definition: ConcentrationRiskLineItems to ConcentrationRiskTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="ConcentrationRiskByTypeAxis" xlink:title="ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ConcentrationRiskTable" xlink:to="ConcentrationRiskByTypeAxis" xlink:title="definition: ConcentrationRiskTable to ConcentrationRiskByTypeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="ConcentrationRiskTypeDomain" xlink:title="ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ConcentrationRiskByTypeAxis" xlink:to="ConcentrationRiskTypeDomain" xlink:title="definition: ConcentrationRiskByTypeAxis to ConcentrationRiskTypeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="ConcentrationRiskTypeDomain_2" xlink:title="ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ConcentrationRiskByTypeAxis" xlink:to="ConcentrationRiskTypeDomain_2" xlink:title="definition: ConcentrationRiskByTypeAxis to ConcentrationRiskTypeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="CustomerConcentrationRiskMember" xlink:title="CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ConcentrationRiskTypeDomain" xlink:to="CustomerConcentrationRiskMember" xlink:title="definition: ConcentrationRiskTypeDomain to CustomerConcentrationRiskMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_GeographicConcentrationRiskMember" xlink:label="GeographicConcentrationRiskMember" xlink:title="GeographicConcentrationRiskMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ConcentrationRiskTypeDomain" xlink:to="GeographicConcentrationRiskMember" xlink:title="definition: ConcentrationRiskTypeDomain to GeographicConcentrationRiskMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ConcentrationRiskByCountryAxis" xlink:label="ConcentrationRiskByCountryAxis" xlink:title="ConcentrationRiskByCountryAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ConcentrationRiskTable" xlink:to="ConcentrationRiskByCountryAxis" xlink:title="definition: ConcentrationRiskTable to ConcentrationRiskByCountryAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/country-2009-01-31.xsd#country_AllCountriesDomain" xlink:label="AllCountriesDomain" xlink:title="AllCountriesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ConcentrationRiskByCountryAxis" xlink:to="AllCountriesDomain" xlink:title="definition: ConcentrationRiskByCountryAxis to AllCountriesDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/country-2009-01-31.xsd#country_AllCountriesDomain" xlink:label="AllCountriesDomain_2" xlink:title="AllCountriesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ConcentrationRiskByCountryAxis" xlink:to="AllCountriesDomain_2" xlink:title="definition: ConcentrationRiskByCountryAxis to AllCountriesDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/country-2009-01-31.xsd#country_BE" xlink:label="BE" xlink:title="BE"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllCountriesDomain" xlink:to="BE" xlink:title="definition: AllCountriesDomain to BE" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/non-gaap/country-2009-01-31.xsd#country_US" xlink:label="US" xlink:title="US"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllCountriesDomain" xlink:to="US" xlink:title="definition: AllCountriesDomain to US" use="optional" order="2.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ConcentrationRiskLineItems" xlink:to="SegmentInformationDisclosureAbstract" xlink:title="definition: ConcentrationRiskLineItems to SegmentInformationDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureFairValueDetails2">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueDisclosureAbstract" xlink:label="FairValueDisclosureAbstract" xlink:title="FairValueDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:label="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:title="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueDisclosureAbstract" xlink:to="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:title="definition: FairValueDisclosureAbstract to FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetValue" xlink:label="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetValue" xlink:title="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetValue" xlink:title="definition: FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetValue" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInEarnings" xlink:label="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInEarnings" xlink:title="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInEarnings"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInEarnings" xlink:title="definition: FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInEarnings" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInOtherComprehensiveIncome" xlink:label="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInOtherComprehensiveIncome" xlink:title="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInOtherComprehensiveIncome"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInOtherComprehensiveIncome" xlink:title="definition: FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetGainLossIncludedInOtherComprehensiveIncome" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetPurchasesSalesIssuancesSettlements" xlink:label="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetPurchasesSalesIssuancesSettlements" xlink:title="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetPurchasesSalesIssuancesSettlements"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetPurchasesSalesIssuancesSettlements" xlink:title="definition: FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetLiabilityNetPurchasesSalesIssuancesSettlements" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsLiabilitiesWithUnobservableInputsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings" xlink:label="FairValueAssetsLiabilitiesWithUnobservableInputsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings" xlink:title="FairValueAssetsLiabilitiesWithUnobservableInputsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:to="FairValueAssetsLiabilitiesWithUnobservableInputsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings" xlink:title="definition: FairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward to FairValueAssetsLiabilitiesWithUnobservableInputsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInEarnings" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:to="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems to FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:to="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable to FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis" xlink:to="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis to FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain_2" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis" xlink:to="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain_2" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetLiabilityTypeAxis to FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherDebtSecuritiesMember" xlink:label="OtherDebtSecuritiesMember" xlink:title="OtherDebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain" xlink:to="OtherDebtSecuritiesMember" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain to OtherDebtSecuritiesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeMember" xlink:label="DerivativeMember" xlink:title="DerivativeMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain" xlink:to="DerivativeMember" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationAssetLiabilityTypesDomain to DerivativeMember" use="optional" order="2.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:to="FairValueDisclosureAbstract" xlink:title="definition: FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems to FairValueDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureAcquisitionsDetails2">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="BusinessAcquisitionAxis" xlink:to="BusinessAcquisitionAcquireeDomain" xlink:title="definition: BusinessAcquisitionAxis to BusinessAcquisitionAcquireeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionOf3ComMember" xlink:label="AcquisitionOf3ComMember" xlink:title="AcquisitionOf3ComMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="AcquisitionOf3ComMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to AcquisitionOf3ComMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquistionOfPalmMember" xlink:label="AcquistionOfPalmMember" xlink:title="AcquistionOfPalmMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="AcquistionOfPalmMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to AcquistionOfPalmMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems" xlink:label="AcquiredFiniteLivedIntangibleAssetsLineItems" xlink:title="AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable" xlink:label="FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable" xlink:title="FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="AcquiredFiniteLivedIntangibleAssetsLineItems" xlink:to="FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable" xlink:title="definition: AcquiredFiniteLivedIntangibleAssetsLineItems to FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable" use="optional" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable" xlink:to="BusinessAcquisitionAxis" xlink:title="definition: FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable to BusinessAcquisitionAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable" xlink:to="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="definition: FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable to AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="definition: AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis to FiniteLivedIntangibleAssetsMajorClassNameDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CustomerContractsCustomerListsAndDistributionAgreementsMember" xlink:label="CustomerContractsCustomerListsAndDistributionAgreementsMember" xlink:title="CustomerContractsCustomerListsAndDistributionAgreementsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="CustomerContractsCustomerListsAndDistributionAgreementsMember" xlink:title="definition: FiniteLivedIntangibleAssetsMajorClassNameDomain to CustomerContractsCustomerListsAndDistributionAgreementsMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TrademarksMember" xlink:label="TrademarksMember" xlink:title="TrademarksMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="TrademarksMember" xlink:title="definition: FiniteLivedIntangibleAssetsMajorClassNameDomain to TrademarksMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DevelopedTechnologyRightsAndUnpatentedTechnologyMember" xlink:label="DevelopedTechnologyRightsAndUnpatentedTechnologyMember" xlink:title="DevelopedTechnologyRightsAndUnpatentedTechnologyMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="DevelopedTechnologyRightsAndUnpatentedTechnologyMember" xlink:title="definition: FiniteLivedIntangibleAssetsMajorClassNameDomain to DevelopedTechnologyRightsAndUnpatentedTechnologyMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionsDisclosureAbstract" xlink:label="AcquisitionsDisclosureAbstract" xlink:title="AcquisitionsDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquiredFiniteLivedIntangibleAssetsLineItems" xlink:to="AcquisitionsDisclosureAbstract" xlink:title="definition: AcquiredFiniteLivedIntangibleAssetsLineItems to AcquisitionsDisclosureAbstract" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets" xlink:label="BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets" xlink:title="BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsDisclosureAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets" xlink:title="definition: AcquisitionsDisclosureAbstract to BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife" xlink:label="AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife" xlink:title="AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsDisclosureAbstract" xlink:to="AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife" xlink:title="definition: AcquisitionsDisclosureAbstract to AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetAmount" xlink:label="AcquiredFiniteLivedIntangibleAssetAmount" xlink:title="AcquiredFiniteLivedIntangibleAssetAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsDisclosureAbstract" xlink:to="AcquiredFiniteLivedIntangibleAssetAmount" xlink:title="definition: AcquisitionsDisclosureAbstract to AcquiredFiniteLivedIntangibleAssetAmount" use="optional" order="8000.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureAcquisitionsDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="BusinessAcquisitionAxis" xlink:to="BusinessAcquisitionAcquireeDomain" xlink:title="definition: BusinessAcquisitionAxis to BusinessAcquisitionAcquireeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionsMember" xlink:label="AcquisitionsMember" xlink:title="AcquisitionsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="AcquisitionsMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to AcquisitionsMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionOf3ComMember" xlink:label="AcquisitionOf3ComMember" xlink:title="AcquisitionOf3ComMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="AcquisitionOf3ComMember" xlink:title="definition: AcquisitionsMember to AcquisitionOf3ComMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherAcquitionsAndDivestituresMember" xlink:label="OtherAcquitionsAndDivestituresMember" xlink:title="OtherAcquitionsAndDivestituresMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="OtherAcquitionsAndDivestituresMember" xlink:title="definition: AcquisitionsMember to OtherAcquitionsAndDivestituresMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquistionOfPalmMember" xlink:label="AcquistionOfPalmMember" xlink:title="AcquistionOfPalmMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="AcquistionOfPalmMember" xlink:title="definition: AcquisitionsMember to AcquistionOfPalmMember" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionOf3PARMember" xlink:label="AcquisitionOf3PARMember" xlink:title="AcquisitionOf3PARMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="AcquisitionOf3PARMember" xlink:title="definition: AcquisitionsMember to AcquisitionOf3PARMember" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_UndefinedMember" xlink:label="UndefinedMember" xlink:title="UndefinedMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="UndefinedMember" xlink:title="definition: AcquisitionsMember to UndefinedMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LefthandNetworksMember" xlink:label="LefthandNetworksMember" xlink:title="LefthandNetworksMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="LefthandNetworksMember" xlink:title="definition: AcquisitionsMember to LefthandNetworksMember" use="optional" order="8005.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionOfArcSightMember" xlink:label="AcquisitionOfArcSightMember" xlink:title="AcquisitionOfArcSightMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="AcquisitionOfArcSightMember" xlink:title="definition: AcquisitionsMember to AcquisitionOfArcSightMember" use="optional" order="8004.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EDSMember" xlink:label="EDSMember" xlink:title="EDSMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="EDSMember" xlink:title="definition: AcquisitionsMember to EDSMember" order="8006.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionOfOneMember" xlink:label="AcquisitionOfOneMember" xlink:title="AcquisitionOfOneMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsMember" xlink:to="AcquisitionOfOneMember" xlink:title="definition: AcquisitionsMember to AcquisitionOfOneMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionsDisclosureAbstract" xlink:label="AcquisitionsDisclosureAbstract" xlink:title="AcquisitionsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NumberOfEntitiesAcquired" xlink:label="NumberOfEntitiesAcquired" xlink:title="NumberOfEntitiesAcquired"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsDisclosureAbstract" xlink:to="NumberOfEntitiesAcquired" xlink:title="definition: AcquisitionsDisclosureAbstract to NumberOfEntitiesAcquired" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:label="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:title="BusinessAcquisitionPurchasePriceAllocationAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsDisclosureAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:title="definition: AcquisitionsDisclosureAbstract to BusinessAcquisitionPurchasePriceAllocationAbstract" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets" xlink:label="BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets" xlink:title="BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssets" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ResearchAndDevelopmentInProcessAcquisitions" xlink:label="ResearchAndDevelopmentInProcessAcquisitions" xlink:title="ResearchAndDevelopmentInProcessAcquisitions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="ResearchAndDevelopmentInProcessAcquisitions" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to ResearchAndDevelopmentInProcessAcquisitions" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillAmount" xlink:label="BusinessAcquisitionPurchasePriceAllocationGoodwillAmount" xlink:title="BusinessAcquisitionPurchasePriceAllocationGoodwillAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationGoodwillAmount" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationGoodwillAmount" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred" xlink:label="BusinessCombinationConsiderationTransferred" xlink:title="BusinessCombinationConsiderationTransferred"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessCombinationConsiderationTransferred" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessCombinationConsiderationTransferred" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShare" xlink:label="BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShare" xlink:title="BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShare"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShare" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShare" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife" xlink:label="AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife" xlink:title="AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndShortTermInvestments" xlink:label="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndShortTermInvestments" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndShortTermInvestments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndShortTermInvestments" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationCurrentAssetsCashAndShortTermInvestments" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables" xlink:label="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory" xlink:label="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory" xlink:title="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionPurchasePriceAllocationOtherTangibleAssets" xlink:label="BusinessAcquisitionPurchasePriceAllocationOtherTangibleAssets" xlink:title="BusinessAcquisitionPurchasePriceAllocationOtherTangibleAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationOtherTangibleAssets" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationOtherTangibleAssets" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionPurchasePriceAllocationAccountsPayableDebtAndOtherLiabilities" xlink:label="BusinessAcquisitionPurchasePriceAllocationAccountsPayableDebtAndOtherLiabilities" xlink:title="BusinessAcquisitionPurchasePriceAllocationAccountsPayableDebtAndOtherLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationAccountsPayableDebtAndOtherLiabilities" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationAccountsPayableDebtAndOtherLiabilities" use="optional" order="8004.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NumberOfEntitiesDisposed" xlink:label="NumberOfEntitiesDisposed" xlink:title="NumberOfEntitiesDisposed"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="NumberOfEntitiesDisposed" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to NumberOfEntitiesDisposed" use="optional" order="8005.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionPurchasePriceAllocationNetTangibleLiabilities" xlink:label="BusinessAcquisitionPurchasePriceAllocationNetTangibleLiabilities" xlink:title="BusinessAcquisitionPurchasePriceAllocationNetTangibleLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationNetTangibleLiabilities" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationNetTangibleLiabilities" use="optional" order="8006.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts" xlink:label="BusinessAcquisitionCostOfAcquiredEntityTransactionCosts" xlink:title="BusinessAcquisitionCostOfAcquiredEntityTransactionCosts"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionCostOfAcquiredEntityTransactionCosts" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionCostOfAcquiredEntityTransactionCosts" use="optional" order="8007.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionProFormaRevenue" xlink:label="BusinessAcquisitionProFormaRevenue" xlink:title="BusinessAcquisitionProFormaRevenue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionProFormaRevenue" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionProFormaRevenue" use="optional" order="8008.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionProFormaNetIncomeLoss" xlink:label="BusinessAcquisitionProFormaNetIncomeLoss" xlink:title="BusinessAcquisitionProFormaNetIncomeLoss"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionProFormaNetIncomeLoss" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionProFormaNetIncomeLoss" use="optional" order="8009.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic" xlink:label="BusinessAcquisitionProFormaEarningsPerShareBasic" xlink:title="BusinessAcquisitionProFormaEarningsPerShareBasic"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionProFormaEarningsPerShareBasic" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionProFormaEarningsPerShareBasic" use="optional" order="8010.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted" xlink:label="BusinessAcquisitionProFormaEarningsPerShareDiluted" xlink:title="BusinessAcquisitionProFormaEarningsPerShareDiluted"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionProFormaEarningsPerShareDiluted" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionProFormaEarningsPerShareDiluted" use="optional" order="8011.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionCostOfAcquiredEntityCashPaid" xlink:label="BusinessAcquisitionCostOfAcquiredEntityCashPaid" xlink:title="BusinessAcquisitionCostOfAcquiredEntityCashPaid"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionCostOfAcquiredEntityCashPaid" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionCostOfAcquiredEntityCashPaid" use="optional" order="8012.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionCostOfAcquiredEntityStockOptionsAndRestrictedStockUnitsAssumed" xlink:label="BusinessAcquisitionCostOfAcquiredEntityStockOptionsAndRestrictedStockUnitsAssumed" xlink:title="BusinessAcquisitionCostOfAcquiredEntityStockOptionsAndRestrictedStockUnitsAssumed"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionCostOfAcquiredEntityStockOptionsAndRestrictedStockUnitsAssumed" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionCostOfAcquiredEntityStockOptionsAndRestrictedStockUnitsAssumed" use="optional" order="8013.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionPurchasePriceAllocationNetTangibleAssets" xlink:label="BusinessAcquisitionPurchasePriceAllocationNetTangibleAssets" xlink:title="BusinessAcquisitionPurchasePriceAllocationNetTangibleAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionPurchasePriceAllocationAbstract" xlink:to="BusinessAcquisitionPurchasePriceAllocationNetTangibleAssets" xlink:title="definition: BusinessAcquisitionPurchasePriceAllocationAbstract to BusinessAcquisitionPurchasePriceAllocationNetTangibleAssets" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquisitionsLineItems" xlink:label="AcquisitionsLineItems" xlink:title="AcquisitionsLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="AcquisitionsLineItems" xlink:to="ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:title="definition: AcquisitionsLineItems to ScheduleOfBusinessAcquisitionsByAcquisitionTable" use="optional" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="BusinessAcquisitionAxis" xlink:title="definition: ScheduleOfBusinessAcquisitionsByAcquisitionTable to BusinessAcquisitionAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="SubsequentEventTypeAxis" xlink:title="SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:to="SubsequentEventTypeAxis" xlink:title="definition: ScheduleOfBusinessAcquisitionsByAcquisitionTable to SubsequentEventTypeAxis" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="SubsequentEventTypeDomain" xlink:title="SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="SubsequentEventTypeAxis" xlink:to="SubsequentEventTypeDomain" xlink:title="definition: SubsequentEventTypeAxis to SubsequentEventTypeDomain" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquisitionMember" xlink:label="AcquisitionMember" xlink:title="AcquisitionMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="AcquisitionMember" xlink:title="definition: SubsequentEventTypeDomain to AcquisitionMember" use="optional" order="8000.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquisitionsLineItems" xlink:to="AcquisitionsDisclosureAbstract" xlink:title="definition: AcquisitionsLineItems to AcquisitionsDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureGoodwillAndPurchasedIntangibleAssetsDetails2">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="BusinessAcquisitionAxis" xlink:to="BusinessAcquisitionAcquireeDomain" xlink:title="definition: BusinessAcquisitionAxis to BusinessAcquisitionAcquireeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EDSMember" xlink:label="EDSMember" xlink:title="EDSMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="EDSMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to EDSMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquistionOfVerticaSystemsIncMember" xlink:label="AcquistionOfVerticaSystemsIncMember" xlink:title="AcquistionOfVerticaSystemsIncMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="AcquistionOfVerticaSystemsIncMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to AcquistionOfVerticaSystemsIncMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:label="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:title="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:title="FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to FiniteLivedIntangibleAssetsAccumulatedAmortization" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="FiniteLivedIntangibleAssetsNet" xlink:title="FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="FiniteLivedIntangibleAssetsNet" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to FiniteLivedIntangibleAssetsNet" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquiredIndefiniteLivedIntangibleAssetAmount" xlink:label="AcquiredIndefiniteLivedIntangibleAssetAmount" xlink:title="AcquiredIndefiniteLivedIntangibleAssetAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="AcquiredIndefiniteLivedIntangibleAssetAmount" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to AcquiredIndefiniteLivedIntangibleAssetAmount" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IndefiniteLivedTradeNames" xlink:label="IndefiniteLivedTradeNames" xlink:title="IndefiniteLivedTradeNames"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="IndefiniteLivedTradeNames" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to IndefiniteLivedTradeNames" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsGross" xlink:label="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsGross" xlink:title="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsGross" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsGross" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet" xlink:label="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet" xlink:title="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to AcquiredFiniteLivedAndIndefiniteLivedIntangibleAssetsNet" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:label="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:title="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:title="FiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to FiniteLivedIntangibleAssetsWeightedAverageUsefulLife" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FiniteLivedIntangibleAssetsTranslationAdjustments" xlink:label="FiniteLivedIntangibleAssetsTranslationAdjustments" xlink:title="FiniteLivedIntangibleAssetsTranslationAdjustments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="FiniteLivedIntangibleAssetsTranslationAdjustments" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to FiniteLivedIntangibleAssetsTranslationAdjustments" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FiniteLivedIntangibleAssetsPurchaseAccountingAdjustment" xlink:label="FiniteLivedIntangibleAssetsPurchaseAccountingAdjustment" xlink:title="FiniteLivedIntangibleAssetsPurchaseAccountingAdjustment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="FiniteLivedIntangibleAssetsPurchaseAccountingAdjustment" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to FiniteLivedIntangibleAssetsPurchaseAccountingAdjustment" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FullyAmortizedIntangibleAssetsEliminated" xlink:label="FullyAmortizedIntangibleAssetsEliminated" xlink:title="FullyAmortizedIntangibleAssetsEliminated"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="FullyAmortizedIntangibleAssetsEliminated" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to FullyAmortizedIntangibleAssetsEliminated" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="FiniteLivedIntangibleAssetsGross" xlink:title="FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:to="FiniteLivedIntangibleAssetsGross" xlink:title="definition: FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract to FiniteLivedIntangibleAssetsGross" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="definition: AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis to FiniteLivedIntangibleAssetsMajorClassNameDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="FiniteLivedIntangibleAssetsMajorClassNameDomain_2" xlink:title="FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="FiniteLivedIntangibleAssetsMajorClassNameDomain_2" xlink:title="definition: AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis to FiniteLivedIntangibleAssetsMajorClassNameDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CustomerContractsCustomerListsAndDistributionAgreementsMember" xlink:label="CustomerContractsCustomerListsAndDistributionAgreementsMember" xlink:title="CustomerContractsCustomerListsAndDistributionAgreementsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="CustomerContractsCustomerListsAndDistributionAgreementsMember" xlink:title="definition: FiniteLivedIntangibleAssetsMajorClassNameDomain to CustomerContractsCustomerListsAndDistributionAgreementsMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TrademarksMember" xlink:label="TrademarksMember" xlink:title="TrademarksMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="TrademarksMember" xlink:title="definition: FiniteLivedIntangibleAssetsMajorClassNameDomain to TrademarksMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DevelopedTechnologyRightsPatentedandUnpatentedTechnologyMember" xlink:label="DevelopedTechnologyRightsPatentedandUnpatentedTechnologyMember" xlink:title="DevelopedTechnologyRightsPatentedandUnpatentedTechnologyMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="DevelopedTechnologyRightsPatentedandUnpatentedTechnologyMember" xlink:title="definition: FiniteLivedIntangibleAssetsMajorClassNameDomain to DevelopedTechnologyRightsPatentedandUnpatentedTechnologyMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquiredIntangibleAssetsLineItems" xlink:label="AcquiredIntangibleAssetsLineItems" xlink:title="AcquiredIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:label="ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:title="ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="AcquiredIntangibleAssetsLineItems" xlink:to="ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:title="definition: AcquiredIntangibleAssetsLineItems to ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" use="optional" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:to="AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="definition: ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable to AcquiredFiniteLivedIntangibleAssetsByMajorClassAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:to="IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:title="definition: ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable to IndefiniteLivedIntangibleAssetsByMajorClassAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:title="definition: IndefiniteLivedIntangibleAssetsByMajorClassAxis to IndefiniteLivedIntangibleAssetsMajorClassNameDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="IndefiniteLivedIntangibleAssetsMajorClassNameDomain_2" xlink:title="IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="IndefiniteLivedIntangibleAssetsMajorClassNameDomain_2" xlink:title="definition: IndefiniteLivedIntangibleAssetsByMajorClassAxis to IndefiniteLivedIntangibleAssetsMajorClassNameDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TradeNamesMember" xlink:label="TradeNamesMember" xlink:title="TradeNamesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="TradeNamesMember" xlink:title="definition: IndefiniteLivedIntangibleAssetsMajorClassNameDomain to TradeNamesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquiredInProcessResearchAndDevelopmentMember" xlink:label="AcquiredInProcessResearchAndDevelopmentMember" xlink:title="AcquiredInProcessResearchAndDevelopmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="AcquiredInProcessResearchAndDevelopmentMember" xlink:title="definition: IndefiniteLivedIntangibleAssetsMajorClassNameDomain to AcquiredInProcessResearchAndDevelopmentMember" use="optional" order="1.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" xlink:to="BusinessAcquisitionAxis" xlink:title="definition: ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable to BusinessAcquisitionAxis" order="3.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AcquiredIntangibleAssetsLineItems" xlink:to="FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" xlink:title="definition: AcquiredIntangibleAssetsLineItems to FiniteLivedPurchasedIntangibleAssetsDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureBorrowingsDetails2">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="SubsequentEventTypeAxis" xlink:title="SubsequentEventTypeAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="SubsequentEventTypeDomain" xlink:title="SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="SubsequentEventTypeAxis" xlink:to="SubsequentEventTypeDomain" xlink:title="definition: SubsequentEventTypeAxis to SubsequentEventTypeDomain" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IssuanceOfDebtMember" xlink:label="IssuanceOfDebtMember" xlink:title="IssuanceOfDebtMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="IssuanceOfDebtMember" xlink:title="definition: SubsequentEventTypeDomain to IssuanceOfDebtMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FloatingNoteMember" xlink:label="FloatingNoteMember" xlink:title="FloatingNoteMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="FloatingNoteMember" xlink:title="definition: SubsequentEventTypeDomain to FloatingNoteMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FixedNoteMember" xlink:label="FixedNoteMember" xlink:title="FixedNoteMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="FixedNoteMember" xlink:title="definition: SubsequentEventTypeDomain to FixedNoteMember" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DebtInstrumentLineItems" xlink:to="DebtInstrumentTable" xlink:title="definition: DebtInstrumentLineItems to DebtInstrumentTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="LongtermDebtTypeAxis" xlink:title="LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="DebtInstrumentTable" xlink:to="LongtermDebtTypeAxis" xlink:title="definition: DebtInstrumentTable to LongtermDebtTypeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="LongtermDebtTypeDomain" xlink:title="LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="LongtermDebtTypeAxis" xlink:to="LongtermDebtTypeDomain" xlink:title="definition: LongtermDebtTypeAxis to LongtermDebtTypeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="LongtermDebtTypeDomain_2" xlink:title="LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="LongtermDebtTypeAxis" xlink:to="LongtermDebtTypeDomain_2" xlink:title="definition: LongtermDebtTypeAxis to LongtermDebtTypeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_USDollarGlobalNotesMember" xlink:label="USDollarGlobalNotesMember" xlink:title="USDollarGlobalNotesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongtermDebtTypeDomain" xlink:to="USDollarGlobalNotesMember" xlink:title="definition: LongtermDebtTypeDomain to USDollarGlobalNotesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2002CorporateDebtSecuritiesDueJuly2012Member" xlink:label="ShelfRegistration2002CorporateDebtSecuritiesDueJuly2012Member" xlink:title="ShelfRegistration2002CorporateDebtSecuritiesDueJuly2012Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2002CorporateDebtSecuritiesDueJuly2012Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2002CorporateDebtSecuritiesDueJuly2012Member" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueMarch2012Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2012Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2012Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2012Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueMarch2012Member" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesIssuedAtDiscountToParDueMarch2012Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesIssuedAtDiscountToParDueMarch2012Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesIssuedAtDiscountToParDueMarch2012Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesIssuedAtDiscountToParDueMarch2012Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesIssuedAtDiscountToParDueMarch2012Member" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueMarch2017Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2017Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2017Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2017Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueMarch2017Member" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueMarch2013Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2013Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2013Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2013Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueMarch2013Member" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueMarch2018Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2018Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2018Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2018Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueMarch2018Member" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueMarch2014Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2014Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2014Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueMarch2014Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueMarch2014Member" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2011Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2011Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2011Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2011Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2011Member" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2012Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2012Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2012Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2012Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueFebruary2012Member" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueJune2014Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueJune2014Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueJune2014Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueJune2014Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueJune2014Member" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueMay2011Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueMay2011Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueMay2011Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueMay2011Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueMay2011Member" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2011Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2011Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2011Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2011Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2011Member" use="optional" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueAugust2012Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueAugust2012Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueAugust2012Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueAugust2012Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueAugust2012Member" use="optional" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2012Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2012Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2012Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2012Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2012Member" use="optional" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2013Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2013Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2013Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2013Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2013Member" use="optional" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2015Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2015Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2015Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2015Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueSeptember2015Member" use="optional" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueDecember2015Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueDecember2015Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueDecember2015Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueDecember2015Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueDecember2015Member" use="optional" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueMay2013Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueMay2013Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueMay2013Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueMay2013Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueMay2013Member" use="optional" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueMay2014Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueMay2014Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueMay2014Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueMay2014Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueMay2014Member" use="optional" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2014Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2014Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2014Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2014Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesIssuedAtDiscountToParDueMay2014Member" use="optional" order="20.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueJune2016Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueJune2016Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueJune2016Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueJune2016Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueJune2016Member" use="optional" order="21.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueJune2021Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueJune2021Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueJune2021Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueJune2021Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueJune2021Member" use="optional" order="22.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesDueDecember2020Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesDueDecember2020Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesDueDecember2020Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesDueDecember2020Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2009CorporateDebtSecuritiesDueDecember2020Member" use="optional" order="17.5"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2006CorporateDebtSecuritiesDueJune2010Member" xlink:label="ShelfRegistration2006CorporateDebtSecuritiesDueJune2010Member" xlink:title="ShelfRegistration2006CorporateDebtSecuritiesDueJune2010Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="USDollarGlobalNotesMember" xlink:to="ShelfRegistration2006CorporateDebtSecuritiesDueJune2010Member" xlink:title="definition: USDollarGlobalNotesMember to ShelfRegistration2006CorporateDebtSecuritiesDueJune2010Member" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EDSSeniorNotesMember" xlink:label="EDSSeniorNotesMember" xlink:title="EDSSeniorNotesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongtermDebtTypeDomain" xlink:to="EDSSeniorNotesMember" xlink:title="definition: LongtermDebtTypeDomain to EDSSeniorNotesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EDSSeniorNotesDueAugust2013Member" xlink:label="EDSSeniorNotesDueAugust2013Member" xlink:title="EDSSeniorNotesDueAugust2013Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EDSSeniorNotesMember" xlink:to="EDSSeniorNotesDueAugust2013Member" xlink:title="definition: EDSSeniorNotesMember to EDSSeniorNotesDueAugust2013Member" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EDSSeniorNotesDueOctober2029Member" xlink:label="EDSSeniorNotesDueOctober2029Member" xlink:title="EDSSeniorNotesDueOctober2029Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EDSSeniorNotesMember" xlink:to="EDSSeniorNotesDueOctober2029Member" xlink:title="definition: EDSSeniorNotesMember to EDSSeniorNotesDueOctober2029Member" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherLongTermDebtAndCapitalLeaseObliationsMember" xlink:label="OtherLongTermDebtAndCapitalLeaseObliationsMember" xlink:title="OtherLongTermDebtAndCapitalLeaseObliationsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongtermDebtTypeDomain" xlink:to="OtherLongTermDebtAndCapitalLeaseObliationsMember" xlink:title="definition: LongtermDebtTypeDomain to OtherLongTermDebtAndCapitalLeaseObliationsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CreditFacilityExpiringMay2012Member" xlink:label="CreditFacilityExpiringMay2012Member" xlink:title="CreditFacilityExpiringMay2012Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongtermDebtTypeDomain" xlink:to="CreditFacilityExpiringMay2012Member" xlink:title="definition: LongtermDebtTypeDomain to CreditFacilityExpiringMay2012Member" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShelfRegistration2009CorporateDebtSecuritiesIssuedSeptember2010Member" xlink:label="ShelfRegistration2009CorporateDebtSecuritiesIssuedSeptember2010Member" xlink:title="ShelfRegistration2009CorporateDebtSecuritiesIssuedSeptember2010Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongtermDebtTypeDomain" xlink:to="ShelfRegistration2009CorporateDebtSecuritiesIssuedSeptember2010Member" xlink:title="definition: LongtermDebtTypeDomain to ShelfRegistration2009CorporateDebtSecuritiesIssuedSeptember2010Member" use="optional" order="8001.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="DebtInstrumentTable" xlink:to="SubsequentEventTypeAxis" xlink:title="definition: DebtInstrumentTable to SubsequentEventTypeAxis" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BorrowingsDisclosureAbstract" xlink:label="BorrowingsDisclosureAbstract" xlink:title="BorrowingsDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtInstrumentLineItems" xlink:to="BorrowingsDisclosureAbstract" xlink:title="definition: DebtInstrumentLineItems to BorrowingsDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtCurrent" xlink:label="DebtCurrent" xlink:title="DebtCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtCurrent" xlink:title="definition: BorrowingsDisclosureAbstract to DebtCurrent" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentPrincipalOutstanding" xlink:label="DebtInstrumentPrincipalOutstanding" xlink:title="DebtInstrumentPrincipalOutstanding"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentPrincipalOutstanding" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentPrincipalOutstanding" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CapitalLeaseObligationsAndOtherBorrowings" xlink:label="CapitalLeaseObligationsAndOtherBorrowings" xlink:title="CapitalLeaseObligationsAndOtherBorrowings"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="CapitalLeaseObligationsAndOtherBorrowings" xlink:title="definition: BorrowingsDisclosureAbstract to CapitalLeaseObligationsAndOtherBorrowings" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge" xlink:label="DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge" xlink:title="DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge" xlink:title="definition: BorrowingsDisclosureAbstract to DeferredGainLossOnDiscontinuationOfInterestRateFairValueHedge" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="LongTermDebtAndCapitalLeaseObligations" xlink:title="LongTermDebtAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="LongTermDebtAndCapitalLeaseObligations" xlink:title="definition: BorrowingsDisclosureAbstract to LongTermDebtAndCapitalLeaseObligations" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentDiscountRateAtIssuance" xlink:label="DebtInstrumentDiscountRateAtIssuance" xlink:title="DebtInstrumentDiscountRateAtIssuance"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentDiscountRateAtIssuance" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentDiscountRateAtIssuance" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="DebtInstrumentInterestRateStatedPercentage" xlink:title="DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentInterestRateStatedPercentage" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentInterestRateStatedPercentage" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentFaceAmount" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentFaceAmount" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentDescriptionOfVariableRateBasis" xlink:label="DebtInstrumentDescriptionOfVariableRateBasis" xlink:title="DebtInstrumentDescriptionOfVariableRateBasis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentDescriptionOfVariableRateBasis" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentDescriptionOfVariableRateBasis" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentBasisSpreadOnVariableRate" xlink:label="DebtInstrumentBasisSpreadOnVariableRate" xlink:title="DebtInstrumentBasisSpreadOnVariableRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentBasisSpreadOnVariableRate" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentBasisSpreadOnVariableRate" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum" xlink:label="DebtInstrumentInterestRateStatedPercentageRateRangeMinimum" xlink:title="DebtInstrumentInterestRateStatedPercentageRateRangeMinimum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentInterestRateStatedPercentageRateRangeMinimum" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentInterestRateStatedPercentageRateRangeMinimum" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum" xlink:label="DebtInstrumentInterestRateStatedPercentageRateRangeMaximum" xlink:title="DebtInstrumentInterestRateStatedPercentageRateRangeMaximum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentInterestRateStatedPercentageRateRangeMaximum" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentInterestRateStatedPercentageRateRangeMaximum" use="optional" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SecuredDebt" xlink:label="SecuredDebt" xlink:title="SecuredDebt"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="SecuredDebt" xlink:title="definition: BorrowingsDisclosureAbstract to SecuredDebt" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtAndEquityAuthorizationExpired" xlink:label="DebtAndEquityAuthorizationExpired" xlink:title="DebtAndEquityAuthorizationExpired"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtAndEquityAuthorizationExpired" xlink:title="definition: BorrowingsDisclosureAbstract to DebtAndEquityAuthorizationExpired" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentUnamortizedPremium" xlink:label="DebtInstrumentUnamortizedPremium" xlink:title="DebtInstrumentUnamortizedPremium"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentUnamortizedPremium" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentUnamortizedPremium" use="optional" order="8004.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="DebtInstrumentUnamortizedDiscount" xlink:title="DebtInstrumentUnamortizedDiscount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentUnamortizedDiscount" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentUnamortizedDiscount" use="optional" order="8005.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="InterestExpenseDebt" xlink:title="InterestExpenseDebt"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="InterestExpenseDebt" xlink:title="definition: BorrowingsDisclosureAbstract to InterestExpenseDebt" use="optional" order="8006.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentIncreaseAdditionalBorrowings" xlink:label="DebtInstrumentIncreaseAdditionalBorrowings" xlink:title="DebtInstrumentIncreaseAdditionalBorrowings"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentIncreaseAdditionalBorrowings" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentIncreaseAdditionalBorrowings" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentMaturityDateRangeStart" xlink:label="DebtInstrumentMaturityDateRangeStart" xlink:title="DebtInstrumentMaturityDateRangeStart"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentMaturityDateRangeStart" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentMaturityDateRangeStart" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtInstrumentMaturityDateRangeEnd" xlink:label="DebtInstrumentMaturityDateRangeEnd" xlink:title="DebtInstrumentMaturityDateRangeEnd"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentMaturityDateRangeEnd" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentMaturityDateRangeEnd" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventDate" xlink:label="SubsequentEventDate" xlink:title="SubsequentEventDate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="SubsequentEventDate" xlink:title="definition: BorrowingsDisclosureAbstract to SubsequentEventDate" use="optional" order="8007.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtByMaturityAbstract" xlink:label="LongTermDebtByMaturityAbstract" xlink:title="LongTermDebtByMaturityAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="LongTermDebtByMaturityAbstract" xlink:title="definition: BorrowingsDisclosureAbstract to LongTermDebtByMaturityAbstract" use="optional" order="8008.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:title="definition: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="definition: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:title="definition: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:title="definition: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" xlink:title="definition: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive" use="optional" order="8004.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive" xlink:title="definition: LongTermDebtByMaturityAbstract to LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive" use="optional" order="8005.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LongTermDebt" xlink:label="LongTermDebt" xlink:title="LongTermDebt"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="LongTermDebt" xlink:title="definition: LongTermDebtByMaturityAbstract to LongTermDebt" use="optional" order="8006.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentIncreaseAdditionalBorrowingsAfterBalanceSheetDate" xlink:label="DebtInstrumentIncreaseAdditionalBorrowingsAfterBalanceSheetDate" xlink:title="DebtInstrumentIncreaseAdditionalBorrowingsAfterBalanceSheetDate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentIncreaseAdditionalBorrowingsAfterBalanceSheetDate" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentIncreaseAdditionalBorrowingsAfterBalanceSheetDate" use="optional" order="8009.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CapitalLeaseObligations" xlink:label="CapitalLeaseObligations" xlink:title="CapitalLeaseObligations"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="CapitalLeaseObligations" xlink:title="definition: BorrowingsDisclosureAbstract to CapitalLeaseObligations" use="optional" order="8010.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentTermLevelOne" xlink:label="DebtInstrumentTermLevelOne" xlink:title="DebtInstrumentTermLevelOne"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentTermLevelOne" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentTermLevelOne" use="optional" order="8011.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentTermLevelTwo" xlink:label="DebtInstrumentTermLevelTwo" xlink:title="DebtInstrumentTermLevelTwo"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentTermLevelTwo" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentTermLevelTwo" use="optional" order="8012.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentTermLevelThree" xlink:label="DebtInstrumentTermLevelThree" xlink:title="DebtInstrumentTermLevelThree"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentTermLevelThree" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentTermLevelThree" use="optional" order="8013.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureBalanceSheetDetailsDetails3">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="SubsequentEventTypeAxis" xlink:title="SubsequentEventTypeAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="SubsequentEventTypeDomain" xlink:title="SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="SubsequentEventTypeAxis" xlink:to="SubsequentEventTypeDomain" xlink:title="definition: SubsequentEventTypeAxis to SubsequentEventTypeDomain" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DiscontinuedOperationOrAssetDisposalMember" xlink:label="DiscontinuedOperationOrAssetDisposalMember" xlink:title="DiscontinuedOperationOrAssetDisposalMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="DiscontinuedOperationOrAssetDisposalMember" xlink:title="definition: SubsequentEventTypeDomain to DiscontinuedOperationOrAssetDisposalMember" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="PropertyPlantAndEquipmentLineItems" xlink:title="PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="definition: PropertyPlantAndEquipmentLineItems to ScheduleOfPropertyPlantAndEquipmentTable" use="optional" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="definition: ScheduleOfPropertyPlantAndEquipmentTable to PropertyPlantAndEquipmentByTypeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="definition: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain_2" xlink:title="PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain_2" xlink:title="definition: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="MachineryAndEquipmentMember" xlink:title="MachineryAndEquipmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MachineryAndEquipmentMember" xlink:title="definition: PropertyPlantAndEquipmentTypeDomain to MachineryAndEquipmentMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LandMember" xlink:label="LandMember" xlink:title="LandMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="LandMember" xlink:title="definition: PropertyPlantAndEquipmentTypeDomain to LandMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LandAndBuildingMember" xlink:label="LandAndBuildingMember" xlink:title="LandAndBuildingMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="LandAndBuildingMember" xlink:title="definition: PropertyPlantAndEquipmentTypeDomain to LandAndBuildingMember" use="optional" order="2.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="SubsequentEventTypeAxis" xlink:title="definition: ScheduleOfPropertyPlantAndEquipmentTable to SubsequentEventTypeAxis" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BalanceSheetDetailsDisclosureAbstract" xlink:label="BalanceSheetDetailsDisclosureAbstract" xlink:title="BalanceSheetDetailsDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="BalanceSheetDetailsDisclosureAbstract" xlink:title="definition: PropertyPlantAndEquipmentLineItems to BalanceSheetDetailsDisclosureAbstract" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="PropertyPlantAndEquipmentGross" xlink:title="PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetDetailsDisclosureAbstract" xlink:to="PropertyPlantAndEquipmentGross" xlink:title="definition: BalanceSheetDetailsDisclosureAbstract to PropertyPlantAndEquipmentGross" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:title="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetDetailsDisclosureAbstract" xlink:to="AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:title="definition: BalanceSheetDetailsDisclosureAbstract to AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetDetailsDisclosureAbstract" xlink:to="PropertyPlantAndEquipmentNet" xlink:title="definition: BalanceSheetDetailsDisclosureAbstract to PropertyPlantAndEquipmentNet" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Depreciation" xlink:label="Depreciation" xlink:title="Depreciation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetDetailsDisclosureAbstract" xlink:to="Depreciation" xlink:title="definition: BalanceSheetDetailsDisclosureAbstract to Depreciation" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventDate" xlink:label="SubsequentEventDate" xlink:title="SubsequentEventDate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetDetailsDisclosureAbstract" xlink:to="SubsequentEventDate" xlink:title="definition: BalanceSheetDetailsDisclosureAbstract to SubsequentEventDate" use="optional" order="8001.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureBorrowingsDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="SubsequentEventTypeAxis" xlink:title="SubsequentEventTypeAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="SubsequentEventTypeDomain" xlink:title="SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="SubsequentEventTypeAxis" xlink:to="SubsequentEventTypeDomain" xlink:title="definition: SubsequentEventTypeAxis to SubsequentEventTypeDomain" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BorrowingsDisclosureAbstract" xlink:label="BorrowingsDisclosureAbstract" xlink:title="BorrowingsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtCurrent" xlink:label="DebtCurrent" xlink:title="DebtCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtCurrent" xlink:title="definition: BorrowingsDisclosureAbstract to DebtCurrent" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShortTermDebtWeightedAverageInterestRate" xlink:label="ShortTermDebtWeightedAverageInterestRate" xlink:title="ShortTermDebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="ShortTermDebtWeightedAverageInterestRate" xlink:title="definition: BorrowingsDisclosureAbstract to ShortTermDebtWeightedAverageInterestRate" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DepositsCurrentDebt" xlink:label="DepositsCurrentDebt" xlink:title="DepositsCurrentDebt"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DepositsCurrentDebt" xlink:title="definition: BorrowingsDisclosureAbstract to DepositsCurrentDebt" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentAuthorizationIncrease" xlink:label="DebtInstrumentAuthorizationIncrease" xlink:title="DebtInstrumentAuthorizationIncrease"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentAuthorizationIncrease" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentAuthorizationIncrease" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentAuthorization" xlink:label="DebtInstrumentAuthorization" xlink:title="DebtInstrumentAuthorization"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentAuthorization" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentAuthorization" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentAuthorizationSubsidiaries" xlink:label="DebtInstrumentAuthorizationSubsidiaries" xlink:title="DebtInstrumentAuthorizationSubsidiaries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentAuthorizationSubsidiaries" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentAuthorizationSubsidiaries" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentUnusedBorrowingCapacityInternationalBankingSubsidiary" xlink:label="DebtInstrumentUnusedBorrowingCapacityInternationalBankingSubsidiary" xlink:title="DebtInstrumentUnusedBorrowingCapacityInternationalBankingSubsidiary"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentUnusedBorrowingCapacityInternationalBankingSubsidiary" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentUnusedBorrowingCapacityInternationalBankingSubsidiary" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:label="LineOfCreditFacilityCurrentBorrowingCapacity" xlink:title="LineOfCreditFacilityCurrentBorrowingCapacity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="LineOfCreditFacilityCurrentBorrowingCapacity" xlink:title="definition: BorrowingsDisclosureAbstract to LineOfCreditFacilityCurrentBorrowingCapacity" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtInstrumentUnusedBorrowingCapacityAmountOtherThan2009ShelfRegistration" xlink:label="DebtInstrumentUnusedBorrowingCapacityAmountOtherThan2009ShelfRegistration" xlink:title="DebtInstrumentUnusedBorrowingCapacityAmountOtherThan2009ShelfRegistration"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="DebtInstrumentUnusedBorrowingCapacityAmountOtherThan2009ShelfRegistration" xlink:title="definition: BorrowingsDisclosureAbstract to DebtInstrumentUnusedBorrowingCapacityAmountOtherThan2009ShelfRegistration" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LineOfCreditFacilityLongTermBorrowingCapacity" xlink:label="LineOfCreditFacilityLongTermBorrowingCapacity" xlink:title="LineOfCreditFacilityLongTermBorrowingCapacity"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BorrowingsDisclosureAbstract" xlink:to="LineOfCreditFacilityLongTermBorrowingCapacity" xlink:title="definition: BorrowingsDisclosureAbstract to LineOfCreditFacilityLongTermBorrowingCapacity" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShortTermDebtLineItems" xlink:label="ShortTermDebtLineItems" xlink:title="ShortTermDebtLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfShortTermDebtTable" xlink:label="ScheduleOfShortTermDebtTable" xlink:title="ScheduleOfShortTermDebtTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ShortTermDebtLineItems" xlink:to="ScheduleOfShortTermDebtTable" xlink:title="definition: ShortTermDebtLineItems to ScheduleOfShortTermDebtTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShortTermDebtTypeAxis" xlink:label="ShortTermDebtTypeAxis" xlink:title="ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfShortTermDebtTable" xlink:to="ShortTermDebtTypeAxis" xlink:title="definition: ScheduleOfShortTermDebtTable to ShortTermDebtTypeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShortTermDebtTypeDomain" xlink:label="ShortTermDebtTypeDomain" xlink:title="ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ShortTermDebtTypeAxis" xlink:to="ShortTermDebtTypeDomain" xlink:title="definition: ShortTermDebtTypeAxis to ShortTermDebtTypeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShortTermDebtTypeDomain" xlink:label="ShortTermDebtTypeDomain_2" xlink:title="ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ShortTermDebtTypeAxis" xlink:to="ShortTermDebtTypeDomain_2" xlink:title="definition: ShortTermDebtTypeAxis to ShortTermDebtTypeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LongTermDebtAndCapitalLeaseObligationsCurrentMember" xlink:label="LongTermDebtAndCapitalLeaseObligationsCurrentMember" xlink:title="LongTermDebtAndCapitalLeaseObligationsCurrentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtTypeDomain" xlink:to="LongTermDebtAndCapitalLeaseObligationsCurrentMember" xlink:title="definition: ShortTermDebtTypeDomain to LongTermDebtAndCapitalLeaseObligationsCurrentMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommercialPaperMember" xlink:label="CommercialPaperMember" xlink:title="CommercialPaperMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtTypeDomain" xlink:to="CommercialPaperMember" xlink:title="definition: ShortTermDebtTypeDomain to CommercialPaperMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NotesPayableToBanksLinesOfCreditAndOtherNotesPayablesMember" xlink:label="NotesPayableToBanksLinesOfCreditAndOtherNotesPayablesMember" xlink:title="NotesPayableToBanksLinesOfCreditAndOtherNotesPayablesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtTypeDomain" xlink:to="NotesPayableToBanksLinesOfCreditAndOtherNotesPayablesMember" xlink:title="definition: ShortTermDebtTypeDomain to NotesPayableToBanksLinesOfCreditAndOtherNotesPayablesMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CreditFacilityExpiringMay2012Member" xlink:label="CreditFacilityExpiringMay2012Member" xlink:title="CreditFacilityExpiringMay2012Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtTypeDomain" xlink:to="CreditFacilityExpiringMay2012Member" xlink:title="definition: ShortTermDebtTypeDomain to CreditFacilityExpiringMay2012Member" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CreditFacilityExpiredFebruary2010Member" xlink:label="CreditFacilityExpiredFebruary2010Member" xlink:title="CreditFacilityExpiredFebruary2010Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtTypeDomain" xlink:to="CreditFacilityExpiredFebruary2010Member" xlink:title="definition: ShortTermDebtTypeDomain to CreditFacilityExpiredFebruary2010Member" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CreditFacilityExpiringFebruary2015Member" xlink:label="CreditFacilityExpiringFebruary2015Member" xlink:title="CreditFacilityExpiringFebruary2015Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtTypeDomain" xlink:to="CreditFacilityExpiringFebruary2015Member" xlink:title="definition: ShortTermDebtTypeDomain to CreditFacilityExpiringFebruary2015Member" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ForeignSubsidiariesCreditFacilitiesAsOfJanuary2010Member" xlink:label="ForeignSubsidiariesCreditFacilitiesAsOfJanuary2010Member" xlink:title="ForeignSubsidiariesCreditFacilitiesAsOfJanuary2010Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtTypeDomain" xlink:to="ForeignSubsidiariesCreditFacilitiesAsOfJanuary2010Member" xlink:title="definition: ShortTermDebtTypeDomain to ForeignSubsidiariesCreditFacilitiesAsOfJanuary2010Member" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherProgramsMember" xlink:label="OtherProgramsMember" xlink:title="OtherProgramsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtTypeDomain" xlink:to="OtherProgramsMember" xlink:title="definition: ShortTermDebtTypeDomain to OtherProgramsMember" order="8001.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfShortTermDebtTable" xlink:to="SubsequentEventTypeAxis" xlink:title="definition: ScheduleOfShortTermDebtTable to SubsequentEventTypeAxis" use="optional" order="8000.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShortTermDebtLineItems" xlink:to="BorrowingsDisclosureAbstract" xlink:title="definition: ShortTermDebtLineItems to BorrowingsDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails2">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="PropertyPlantAndEquipmentLineItems" xlink:title="PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="ScheduleOfPropertyPlantAndEquipmentTable" xlink:title="definition: PropertyPlantAndEquipmentLineItems to ScheduleOfPropertyPlantAndEquipmentTable" use="optional" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="PropertyPlantAndEquipmentByTypeAxis" xlink:title="PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="PropertyPlantAndEquipmentByTypeAxis" xlink:title="definition: ScheduleOfPropertyPlantAndEquipmentTable to PropertyPlantAndEquipmentByTypeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="PropertyPlantAndEquipmentTypeDomain" xlink:title="PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="PropertyPlantAndEquipmentByTypeAxis" xlink:to="PropertyPlantAndEquipmentTypeDomain" xlink:title="definition: PropertyPlantAndEquipmentByTypeAxis to PropertyPlantAndEquipmentTypeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="MachineryAndEquipmentMember" xlink:title="MachineryAndEquipmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="MachineryAndEquipmentMember" xlink:title="definition: PropertyPlantAndEquipmentTypeDomain to MachineryAndEquipmentMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="BuildingAndBuildingImprovementsMember" xlink:title="BuildingAndBuildingImprovementsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="BuildingAndBuildingImprovementsMember" xlink:title="definition: PropertyPlantAndEquipmentTypeDomain to BuildingAndBuildingImprovementsMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CapitalizedSoftwareForInternalUseMember" xlink:label="CapitalizedSoftwareForInternalUseMember" xlink:title="CapitalizedSoftwareForInternalUseMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="CapitalizedSoftwareForInternalUseMember" xlink:title="definition: PropertyPlantAndEquipmentTypeDomain to CapitalizedSoftwareForInternalUseMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CapitalizedSoftwareForResaleMember" xlink:label="CapitalizedSoftwareForResaleMember" xlink:title="CapitalizedSoftwareForResaleMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentTypeDomain" xlink:to="CapitalizedSoftwareForResaleMember" xlink:title="definition: PropertyPlantAndEquipmentTypeDomain to CapitalizedSoftwareForResaleMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract" xlink:label="BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract" xlink:title="BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PropertyPlantAndEquipmentLineItems" xlink:to="BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract" xlink:title="definition: PropertyPlantAndEquipmentLineItems to BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLifeMinimum" xlink:label="PropertyPlantAndEquipmentUsefulLifeMinimum" xlink:title="PropertyPlantAndEquipmentUsefulLifeMinimum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract" xlink:to="PropertyPlantAndEquipmentUsefulLifeMinimum" xlink:title="definition: BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract to PropertyPlantAndEquipmentUsefulLifeMinimum" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLifeMaximum" xlink:label="PropertyPlantAndEquipmentUsefulLifeMaximum" xlink:title="PropertyPlantAndEquipmentUsefulLifeMaximum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract" xlink:to="PropertyPlantAndEquipmentUsefulLifeMaximum" xlink:title="definition: BasisOfPresentationAndSignificantAccountingPoliciesDisclosureAbstract to PropertyPlantAndEquipmentUsefulLifeMaximum" use="optional" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureStockBasedCompensationDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:label="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:title="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:to="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis to ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:to="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis to ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PerformanceBasedRestrictedUnitsMember" xlink:label="PerformanceBasedRestrictedUnitsMember" xlink:title="PerformanceBasedRestrictedUnitsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="PerformanceBasedRestrictedUnitsMember" xlink:title="definition: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to PerformanceBasedRestrictedUnitsMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="EmployeeStockOptionMember" xlink:title="EmployeeStockOptionMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="EmployeeStockOptionMember" xlink:title="definition: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to EmployeeStockOptionMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EmployeeStockPurchasePlanMember" xlink:label="EmployeeStockPurchasePlanMember" xlink:title="EmployeeStockPurchasePlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="EmployeeStockPurchasePlanMember" xlink:title="definition: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to EmployeeStockPurchasePlanMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestrictedStockPlanMember" xlink:label="RestrictedStockPlanMember" xlink:title="RestrictedStockPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="RestrictedStockPlanMember" xlink:title="definition: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to RestrictedStockPlanMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestrictedStockPlanAwardMember" xlink:label="RestrictedStockPlanAwardMember" xlink:title="RestrictedStockPlanAwardMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestrictedStockPlanMember" xlink:to="RestrictedStockPlanAwardMember" xlink:title="definition: RestrictedStockPlanMember to RestrictedStockPlanAwardMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestrictedStockUnitsMember" xlink:label="RestrictedStockUnitsMember" xlink:title="RestrictedStockUnitsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestrictedStockPlanMember" xlink:to="RestrictedStockUnitsMember" xlink:title="definition: RestrictedStockPlanMember to RestrictedStockUnitsMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SpecialIncrementalPerformanceBasedRestrictedUnitMember" xlink:label="SpecialIncrementalPerformanceBasedRestrictedUnitMember" xlink:title="SpecialIncrementalPerformanceBasedRestrictedUnitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="SpecialIncrementalPerformanceBasedRestrictedUnitMember" xlink:title="definition: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to SpecialIncrementalPerformanceBasedRestrictedUnitMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis" xlink:label="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis" xlink:title="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis to ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain_2" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain_2" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis to ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HPPlansMember" xlink:label="HPPlansMember" xlink:title="HPPlansMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" xlink:to="HPPlansMember" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain to HPPlansMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AssumedCompaqAndEDSPlansMember" xlink:label="AssumedCompaqAndEDSPlansMember" xlink:title="AssumedCompaqAndEDSPlansMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" xlink:to="AssumedCompaqAndEDSPlansMember" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain to AssumedCompaqAndEDSPlansMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_StockBasedCompensationDisclosureAbstract" xlink:label="StockBasedCompensationDisclosureAbstract" xlink:title="StockBasedCompensationDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="StockBasedCompensationDisclosureAbstract" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to StockBasedCompensationDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriod" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PercentageOfShareIssuanceLowEndOfRange" xlink:label="PercentageOfShareIssuanceLowEndOfRange" xlink:title="PercentageOfShareIssuanceLowEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="PercentageOfShareIssuanceLowEndOfRange" xlink:title="definition: StockBasedCompensationDisclosureAbstract to PercentageOfShareIssuanceLowEndOfRange" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PercentageOfShareIssuanceHighEndOfRange" xlink:label="PercentageOfShareIssuanceHighEndOfRange" xlink:title="PercentageOfShareIssuanceHighEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="PercentageOfShareIssuanceHighEndOfRange" xlink:title="definition: StockBasedCompensationDisclosureAbstract to PercentageOfShareIssuanceHighEndOfRange" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:label="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:title="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:title="definition: StockBasedCompensationDisclosureAbstract to WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedTerm" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendPayments" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageGrantDateFairValue" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingInPeriodAssignedAtFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingInPeriodAssignedAtFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingInPeriodAssignedAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingInPeriodAssignedAtFairValue" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingInPeriodAssignedAtFairValue" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="WeightedAverageAssumptionsDeterminingFairValueItemListAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:title="definition: WeightedAverageAssumptionsDeterminingFairValueItemListAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsChangesForPerformanceOrMarketConditions" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsChangesForPerformanceOrMarketConditions" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsChangesForPerformanceOrMarketConditions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsChangesForPerformanceOrMarketConditions" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsChangesForPerformanceOrMarketConditions" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumberAssignedFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumberAssignedFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumberAssignedFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumberAssignedFairValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumberAssignedFairValue" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:title="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsWeightedAveragePeriodOfRecognition" xlink:label="EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsWeightedAveragePeriodOfRecognition" xlink:title="EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsWeightedAveragePeriodOfRecognition"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsWeightedAveragePeriodOfRecognition" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsWeightedAveragePeriodOfRecognition" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" use="optional" priority="1" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageGrantDateFairValue" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitions" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitions" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitions" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitions" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitionsWeightedAverageGrantDateFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitionsWeightedAverageGrantDateFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitionsWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitionsWeightedAverageGrantDateFairValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInAcquisitionsWeightedAverageGrantDateFairValue" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice" use="optional" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm" use="optional" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue" use="optional" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" use="optional" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" use="optional" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm" use="optional" order="17.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue" use="optional" order="18.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" use="optional" order="19.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodTotalFairValue" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodTotalFairValue" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodTotalFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodTotalFairValue" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodTotalFairValue" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitions" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitions" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitions" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitions" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitionsWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitionsWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitionsWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitionsWeightedAverageExercisePrice" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAssumedInAcquisitionsWeightedAverageExercisePrice" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_StockOptionDisclosuresAbstract" xlink:label="StockOptionDisclosuresAbstract" xlink:title="StockOptionDisclosuresAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="StockOptionDisclosuresAbstract" xlink:title="definition: StockBasedCompensationDisclosureAbstract to StockOptionDisclosuresAbstract" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockOptionDisclosuresAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" xlink:title="definition: StockOptionDisclosuresAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermAfter2003" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermAfter2003" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermAfter2003"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockOptionDisclosuresAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermAfter2003" xlink:title="definition: StockOptionDisclosuresAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermAfter2003" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermPrior2003" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermPrior2003" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermPrior2003"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockOptionDisclosuresAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermPrior2003" xlink:title="definition: StockOptionDisclosuresAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTermPrior2003" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedAwardDiscountRateForExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedAwardDiscountRateForExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedAwardDiscountRateForExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockOptionDisclosuresAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedAwardDiscountRateForExercisePrice" xlink:title="definition: StockOptionDisclosuresAbstract to ShareBasedCompensationArrangementByShareBasedAwardDiscountRateForExercisePrice" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NumberOfEmployeePopulationsIdentifiedForApplicationOfBlackScholesModel" xlink:label="NumberOfEmployeePopulationsIdentifiedForApplicationOfBlackScholesModel" xlink:title="NumberOfEmployeePopulationsIdentifiedForApplicationOfBlackScholesModel"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockOptionDisclosuresAbstract" xlink:to="NumberOfEmployeePopulationsIdentifiedForApplicationOfBlackScholesModel" xlink:title="definition: StockOptionDisclosuresAbstract to NumberOfEmployeePopulationsIdentifiedForApplicationOfBlackScholesModel" use="optional" order="8004.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="CommonStockCapitalSharesReservedForFutureIssuance" xlink:title="CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="CommonStockCapitalSharesReservedForFutureIssuance" xlink:title="definition: StockBasedCompensationDisclosureAbstract to CommonStockCapitalSharesReservedForFutureIssuance" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantExpired" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantExpired" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantExpired"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantExpired" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrantExpired" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodLowEndOfRange" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodLowEndOfRange" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodLowEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodLowEndOfRange" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodLowEndOfRange" use="optional" order="8004.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodHighEndOfRange" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodHighEndOfRange" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodHighEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodHighEndOfRange" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformancePeriodHighEndOfRange" use="optional" order="8005.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForFirstYear" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForFirstYear" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForFirstYear"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForFirstYear" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForFirstYear" use="optional" order="8006.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForSecondYear" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForSecondYear" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForSecondYear"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForSecondYear" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForSecondYear" use="optional" order="8007.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForThirdYear" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForThirdYear" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForThirdYear"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForThirdYear" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfNonGaapEPSForThirdYear" use="optional" order="8008.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForFirstTwoYears" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForFirstTwoYears" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForFirstTwoYears"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForFirstTwoYears" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForFirstTwoYears" use="optional" order="8009.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForThreeYears" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForThreeYears" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForThreeYears"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForThreeYears" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardTargetPercentageOfTSRForThreeYears" use="optional" order="8010.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureStockBasedCompensationDetails3">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:label="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:title="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:to="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis to ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EmployeeStockPurchasePlanMember" xlink:label="EmployeeStockPurchasePlanMember" xlink:title="EmployeeStockPurchasePlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="EmployeeStockPurchasePlanMember" xlink:title="definition: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to EmployeeStockPurchasePlanMember" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EmployeeStockPurchasePlanAbstract" xlink:label="EmployeeStockPurchasePlanAbstract" xlink:title="EmployeeStockPurchasePlanAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="EmployeeStockPurchasePlanAbstract" xlink:title="definition: ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to EmployeeStockPurchasePlanAbstract" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementContributionLimit" xlink:label="ShareBasedCompensationArrangementContributionLimit" xlink:title="ShareBasedCompensationArrangementContributionLimit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanAbstract" xlink:to="ShareBasedCompensationArrangementContributionLimit" xlink:title="definition: EmployeeStockPurchasePlanAbstract to ShareBasedCompensationArrangementContributionLimit" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationPlanPurchasePriceAsPercentOfFairMarketValue" xlink:label="ShareBasedCompensationPlanPurchasePriceAsPercentOfFairMarketValue" xlink:title="ShareBasedCompensationPlanPurchasePriceAsPercentOfFairMarketValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanAbstract" xlink:to="ShareBasedCompensationPlanPurchasePriceAsPercentOfFairMarketValue" xlink:title="definition: EmployeeStockPurchasePlanAbstract to ShareBasedCompensationPlanPurchasePriceAsPercentOfFairMarketValue" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPrice" xlink:title="definition: EmployeeStockPurchasePlanAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPrice" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EmployeeStockPurchasePlanActivityAbstract" xlink:label="EmployeeStockPurchasePlanActivityAbstract" xlink:title="EmployeeStockPurchasePlanActivityAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanAbstract" xlink:to="EmployeeStockPurchasePlanActivityAbstract" xlink:title="definition: EmployeeStockPurchasePlanAbstract to EmployeeStockPurchasePlanActivityAbstract" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AllocatedShareBasedCompensationExpenseNetOfTax" xlink:label="AllocatedShareBasedCompensationExpenseNetOfTax" xlink:title="AllocatedShareBasedCompensationExpenseNetOfTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanActivityAbstract" xlink:to="AllocatedShareBasedCompensationExpenseNetOfTax" xlink:title="definition: EmployeeStockPurchasePlanActivityAbstract to AllocatedShareBasedCompensationExpenseNetOfTax" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:label="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:title="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanActivityAbstract" xlink:to="StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:title="definition: EmployeeStockPurchasePlanActivityAbstract to StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAveragePurchasePricePerShare" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAveragePurchasePricePerShare" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAveragePurchasePricePerShare"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanActivityAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAveragePurchasePricePerShare" xlink:title="definition: EmployeeStockPurchasePlanActivityAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAveragePurchasePricePerShare" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesEligibleForParticipate" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesEligibleForParticipate" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesEligibleForParticipate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanActivityAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesEligibleForParticipate" xlink:title="definition: EmployeeStockPurchasePlanActivityAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesEligibleForParticipate" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesParticipated" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesParticipated" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesParticipated"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EmployeeStockPurchasePlanActivityAbstract" xlink:to="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesParticipated" xlink:title="definition: EmployeeStockPurchasePlanActivityAbstract to ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesParticipated" use="optional" order="5.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureNetEarningsPerShareDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:label="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:title="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:to="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis to ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PerformanceBasedRestrictedUnitsMember" xlink:label="PerformanceBasedRestrictedUnitsMember" xlink:title="PerformanceBasedRestrictedUnitsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="PerformanceBasedRestrictedUnitsMember" xlink:title="definition: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to PerformanceBasedRestrictedUnitsMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherInformationRelatedToEPSComputationLineItems" xlink:label="OtherInformationRelatedToEPSComputationLineItems" xlink:title="OtherInformationRelatedToEPSComputationLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InformationRelatedToEPSComputationTable" xlink:label="InformationRelatedToEPSComputationTable" xlink:title="InformationRelatedToEPSComputationTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="OtherInformationRelatedToEPSComputationLineItems" xlink:to="InformationRelatedToEPSComputationTable" xlink:title="definition: OtherInformationRelatedToEPSComputationLineItems to InformationRelatedToEPSComputationTable" use="optional" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="InformationRelatedToEPSComputationTable" xlink:to="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:title="definition: InformationRelatedToEPSComputationTable to ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="InformationRelatedToEPSComputationTable" xlink:to="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:title="definition: InformationRelatedToEPSComputationTable to AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="AntidilutiveSecuritiesNameDomain_2" xlink:title="AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="AntidilutiveSecuritiesNameDomain_2" xlink:title="definition: AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis to AntidilutiveSecuritiesNameDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="AntidilutiveSecuritiesNameDomain" xlink:title="AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="AntidilutiveSecuritiesNameDomain" xlink:title="definition: AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis to AntidilutiveSecuritiesNameDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_StockOptionsCombinedExercisePriceUnamortizedFairValueExcessTaxBenefitsGreaterThanMarketPriceMember" xlink:label="StockOptionsCombinedExercisePriceUnamortizedFairValueExcessTaxBenefitsGreaterThanMarketPriceMember" xlink:title="StockOptionsCombinedExercisePriceUnamortizedFairValueExcessTaxBenefitsGreaterThanMarketPriceMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AntidilutiveSecuritiesNameDomain" xlink:to="StockOptionsCombinedExercisePriceUnamortizedFairValueExcessTaxBenefitsGreaterThanMarketPriceMember" xlink:title="definition: AntidilutiveSecuritiesNameDomain to StockOptionsCombinedExercisePriceUnamortizedFairValueExcessTaxBenefitsGreaterThanMarketPriceMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_StockOptionsExercisePriceGreaterThanMarketPriceMember" xlink:label="StockOptionsExercisePriceGreaterThanMarketPriceMember" xlink:title="StockOptionsExercisePriceGreaterThanMarketPriceMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AntidilutiveSecuritiesNameDomain" xlink:to="StockOptionsExercisePriceGreaterThanMarketPriceMember" xlink:title="definition: AntidilutiveSecuritiesNameDomain to StockOptionsExercisePriceGreaterThanMarketPriceMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NetEarningsPerShareDisclosureAbstract" xlink:label="NetEarningsPerShareDisclosureAbstract" xlink:title="NetEarningsPerShareDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="OtherInformationRelatedToEPSComputationLineItems" xlink:to="NetEarningsPerShareDisclosureAbstract" xlink:title="definition: OtherInformationRelatedToEPSComputationLineItems to NetEarningsPerShareDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetEarningsPerShareDisclosureAbstract" xlink:to="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:title="definition: NetEarningsPerShareDisclosureAbstract to AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToContingentlyIssuableShares" xlink:label="IncrementalCommonSharesAttributableToContingentlyIssuableShares" xlink:title="IncrementalCommonSharesAttributableToContingentlyIssuableShares"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetEarningsPerShareDisclosureAbstract" xlink:to="IncrementalCommonSharesAttributableToContingentlyIssuableShares" xlink:title="definition: NetEarningsPerShareDisclosureAbstract to IncrementalCommonSharesAttributableToContingentlyIssuableShares" use="optional" order="8000.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureStockBasedCompensationDetails2">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:label="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:title="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:to="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="definition: ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis to ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="EmployeeStockOptionMember" xlink:title="EmployeeStockOptionMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="EmployeeStockOptionMember" xlink:title="definition: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to EmployeeStockOptionMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_StockBasedCompensationDisclosureAbstract" xlink:label="StockBasedCompensationDisclosureAbstract" xlink:title="StockBasedCompensationDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="StockBasedCompensationDisclosureAbstract" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice" xlink:title="definition: StockBasedCompensationDisclosureAbstract to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:label="ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:title="ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:title="definition: ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:label="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_2" xlink:title="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_2" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis to ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RangeOfExercisePrice0To9.99Member" xlink:label="RangeOfExercisePrice0To9.99Member" xlink:title="RangeOfExercisePrice0To9.99Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="RangeOfExercisePrice0To9.99Member" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to RangeOfExercisePrice0To9.99Member" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RangeOfExercisePrice10To19.99Member" xlink:label="RangeOfExercisePrice10To19.99Member" xlink:title="RangeOfExercisePrice10To19.99Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="RangeOfExercisePrice10To19.99Member" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to RangeOfExercisePrice10To19.99Member" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RangeOfExercisePrice20To29.99Member" xlink:label="RangeOfExercisePrice20To29.99Member" xlink:title="RangeOfExercisePrice20To29.99Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="RangeOfExercisePrice20To29.99Member" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to RangeOfExercisePrice20To29.99Member" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RangeOfExercisePrice30To39.99Member" xlink:label="RangeOfExercisePrice30To39.99Member" xlink:title="RangeOfExercisePrice30To39.99Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="RangeOfExercisePrice30To39.99Member" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to RangeOfExercisePrice30To39.99Member" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RangeOfExercisePrice40To49.99Member" xlink:label="RangeOfExercisePrice40To49.99Member" xlink:title="RangeOfExercisePrice40To49.99Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="RangeOfExercisePrice40To49.99Member" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to RangeOfExercisePrice40To49.99Member" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RangeOfExercisePrice50To59.99Member" xlink:label="RangeOfExercisePrice50To59.99Member" xlink:title="RangeOfExercisePrice50To59.99Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="RangeOfExercisePrice50To59.99Member" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to RangeOfExercisePrice50To59.99Member" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RangeOfExercisePrice60AndAboveMember" xlink:label="RangeOfExercisePrice60AndAboveMember" xlink:title="RangeOfExercisePrice60AndAboveMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="RangeOfExercisePrice60AndAboveMember" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain to RangeOfExercisePrice60AndAboveMember" use="optional" order="7.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:to="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" xlink:title="definition: ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable to ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardAwardTypeAndPlanNameAxis" use="optional" order="2.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="StockBasedCompensationDisclosureAbstract" xlink:title="definition: ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems to StockBasedCompensationDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureRestructuringChargesDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringAndRelatedCostLineItems" xlink:label="RestructuringAndRelatedCostLineItems" xlink:title="RestructuringAndRelatedCostLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable" xlink:label="ScheduleOfRestructuringAndRelatedCostsTable" xlink:title="ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="RestructuringAndRelatedCostLineItems" xlink:to="ScheduleOfRestructuringAndRelatedCostsTable" xlink:title="definition: RestructuringAndRelatedCostLineItems to ScheduleOfRestructuringAndRelatedCostsTable" use="optional" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringPlanAxis" xlink:label="RestructuringPlanAxis" xlink:title="RestructuringPlanAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfRestructuringAndRelatedCostsTable" xlink:to="RestructuringPlanAxis" xlink:title="definition: ScheduleOfRestructuringAndRelatedCostsTable to RestructuringPlanAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringPlansAdoptedDomain" xlink:label="RestructuringPlansAdoptedDomain" xlink:title="RestructuringPlansAdoptedDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="RestructuringPlanAxis" xlink:to="RestructuringPlansAdoptedDomain" xlink:title="definition: RestructuringPlanAxis to RestructuringPlansAdoptedDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringPlansAdoptedDomain" xlink:label="RestructuringPlansAdoptedDomain_2" xlink:title="RestructuringPlansAdoptedDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="RestructuringPlanAxis" xlink:to="RestructuringPlansAdoptedDomain_2" xlink:title="definition: RestructuringPlanAxis to RestructuringPlansAdoptedDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringPlan3ComMember" xlink:label="RestructuringPlan3ComMember" xlink:title="RestructuringPlan3ComMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringPlansAdoptedDomain" xlink:to="RestructuringPlan3ComMember" xlink:title="definition: RestructuringPlansAdoptedDomain to RestructuringPlan3ComMember" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_Fiscal2010AcquisitionsRestructuringPlanMember" xlink:label="Fiscal2010AcquisitionsRestructuringPlanMember" xlink:title="Fiscal2010AcquisitionsRestructuringPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringPlansAdoptedDomain" xlink:to="Fiscal2010AcquisitionsRestructuringPlanMember" xlink:title="definition: RestructuringPlansAdoptedDomain to Fiscal2010AcquisitionsRestructuringPlanMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_Fiscal2010RestructuringPlanMember" xlink:label="Fiscal2010RestructuringPlanMember" xlink:title="Fiscal2010RestructuringPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringPlansAdoptedDomain" xlink:to="Fiscal2010RestructuringPlanMember" xlink:title="definition: RestructuringPlansAdoptedDomain to Fiscal2010RestructuringPlanMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_Fiscal2009PlanMember" xlink:label="Fiscal2009PlanMember" xlink:title="Fiscal2009PlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringPlansAdoptedDomain" xlink:to="Fiscal2009PlanMember" xlink:title="definition: RestructuringPlansAdoptedDomain to Fiscal2009PlanMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_Fiscal2008PlanMember" xlink:label="Fiscal2008PlanMember" xlink:title="Fiscal2008PlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringPlansAdoptedDomain" xlink:to="Fiscal2008PlanMember" xlink:title="definition: RestructuringPlansAdoptedDomain to Fiscal2008PlanMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherRestructuringPlanMember" xlink:label="OtherRestructuringPlanMember" xlink:title="OtherRestructuringPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringPlansAdoptedDomain" xlink:to="OtherRestructuringPlanMember" xlink:title="definition: RestructuringPlansAdoptedDomain to OtherRestructuringPlanMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquistionOfPalmMember" xlink:label="AcquistionOfPalmMember" xlink:title="AcquistionOfPalmMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringPlansAdoptedDomain" xlink:to="AcquistionOfPalmMember" xlink:title="definition: RestructuringPlansAdoptedDomain to AcquistionOfPalmMember" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringAndRelatedCostByTypeOfRestructuringAxis" xlink:label="RestructuringAndRelatedCostByTypeOfRestructuringAxis" xlink:title="RestructuringAndRelatedCostByTypeOfRestructuringAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfRestructuringAndRelatedCostsTable" xlink:to="RestructuringAndRelatedCostByTypeOfRestructuringAxis" xlink:title="definition: ScheduleOfRestructuringAndRelatedCostsTable to RestructuringAndRelatedCostByTypeOfRestructuringAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="TypeOfRestructuringDomain" xlink:title="TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="RestructuringAndRelatedCostByTypeOfRestructuringAxis" xlink:to="TypeOfRestructuringDomain" xlink:title="definition: RestructuringAndRelatedCostByTypeOfRestructuringAxis to TypeOfRestructuringDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="TypeOfRestructuringDomain_2" xlink:title="TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="RestructuringAndRelatedCostByTypeOfRestructuringAxis" xlink:to="TypeOfRestructuringDomain_2" xlink:title="definition: RestructuringAndRelatedCostByTypeOfRestructuringAxis to TypeOfRestructuringDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EmployeeSeveranceMember" xlink:label="EmployeeSeveranceMember" xlink:title="EmployeeSeveranceMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TypeOfRestructuringDomain" xlink:to="EmployeeSeveranceMember" xlink:title="definition: TypeOfRestructuringDomain to EmployeeSeveranceMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InfrastructureRestructuringMember" xlink:label="InfrastructureRestructuringMember" xlink:title="InfrastructureRestructuringMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TypeOfRestructuringDomain" xlink:to="InfrastructureRestructuringMember" xlink:title="definition: TypeOfRestructuringDomain to InfrastructureRestructuringMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ExpectedRemainingCostsToBePaidOutMember" xlink:label="ExpectedRemainingCostsToBePaidOutMember" xlink:title="ExpectedRemainingCostsToBePaidOutMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TypeOfRestructuringDomain" xlink:to="ExpectedRemainingCostsToBePaidOutMember" xlink:title="definition: TypeOfRestructuringDomain to ExpectedRemainingCostsToBePaidOutMember" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringChargesDisclosureAbstract" xlink:label="RestructuringChargesDisclosureAbstract" xlink:title="RestructuringChargesDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringAndRelatedCostLineItems" xlink:to="RestructuringChargesDisclosureAbstract" xlink:title="definition: RestructuringAndRelatedCostLineItems to RestructuringChargesDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringAndRelatedCostPositionsExpectedToBeReplaced" xlink:label="RestructuringAndRelatedCostPositionsExpectedToBeReplaced" xlink:title="RestructuringAndRelatedCostPositionsExpectedToBeReplaced"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringAndRelatedCostPositionsExpectedToBeReplaced" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringAndRelatedCostPositionsExpectedToBeReplaced" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringAndRelatedCostImplementationPeriod" xlink:label="RestructuringAndRelatedCostImplementationPeriod" xlink:title="RestructuringAndRelatedCostImplementationPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringAndRelatedCostImplementationPeriod" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringAndRelatedCostImplementationPeriod" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionCostOfAcquiredEntityPlannedRestructuringActivities" xlink:label="BusinessAcquisitionCostOfAcquiredEntityPlannedRestructuringActivities" xlink:title="BusinessAcquisitionCostOfAcquiredEntityPlannedRestructuringActivities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="BusinessAcquisitionCostOfAcquiredEntityPlannedRestructuringActivities" xlink:title="definition: RestructuringChargesDisclosureAbstract to BusinessAcquisitionCostOfAcquiredEntityPlannedRestructuringActivities" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringReserveRollForward" xlink:label="RestructuringReserveRollForward" xlink:title="RestructuringReserveRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringReserveRollForward" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringReserveRollForward" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringReservePeriodExpense" xlink:label="RestructuringReservePeriodExpense" xlink:title="RestructuringReservePeriodExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringReserveRollForward" xlink:to="RestructuringReservePeriodExpense" xlink:title="definition: RestructuringReserveRollForward to RestructuringReservePeriodExpense" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringReserveSettledWithCash" xlink:label="RestructuringReserveSettledWithCash" xlink:title="RestructuringReserveSettledWithCash"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringReserveRollForward" xlink:to="RestructuringReserveSettledWithCash" xlink:title="definition: RestructuringReserveRollForward to RestructuringReserveSettledWithCash" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringReserveSettledWithoutCashAndAccrualAdjustment" xlink:label="RestructuringReserveSettledWithoutCashAndAccrualAdjustment" xlink:title="RestructuringReserveSettledWithoutCashAndAccrualAdjustment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringReserveRollForward" xlink:to="RestructuringReserveSettledWithoutCashAndAccrualAdjustment" xlink:title="definition: RestructuringReserveRollForward to RestructuringReserveSettledWithoutCashAndAccrualAdjustment" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringReserveIncludingReserveForNewlyAcquiredBusiness" xlink:label="RestructuringReserveIncludingReserveForNewlyAcquiredBusiness" xlink:title="RestructuringReserveIncludingReserveForNewlyAcquiredBusiness"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringReserveRollForward" xlink:to="RestructuringReserveIncludingReserveForNewlyAcquiredBusiness" xlink:title="definition: RestructuringReserveRollForward to RestructuringReserveIncludingReserveForNewlyAcquiredBusiness" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost" xlink:label="RestructuringAndRelatedCostExpectedCost" xlink:title="RestructuringAndRelatedCostExpectedCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringAndRelatedCostExpectedCost" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringAndRelatedCostExpectedCost" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ExpectedCostsAndAdjustments" xlink:label="ExpectedCostsAndAdjustments" xlink:title="ExpectedCostsAndAdjustments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="ExpectedCostsAndAdjustments" xlink:title="definition: RestructuringChargesDisclosureAbstract to ExpectedCostsAndAdjustments" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringAndRelatedCostCostIncurredToDate" xlink:label="RestructuringAndRelatedCostCostIncurredToDate" xlink:title="RestructuringAndRelatedCostCostIncurredToDate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringAndRelatedCostCostIncurredToDate" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringAndRelatedCostCostIncurredToDate" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringReservesNoncurrent" xlink:label="RestructuringReservesNoncurrent" xlink:title="RestructuringReservesNoncurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringReservesNoncurrent" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringReservesNoncurrent" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringAndRelatedCostIncurredAndExpectedCost" xlink:label="RestructuringAndRelatedCostIncurredAndExpectedCost" xlink:title="RestructuringAndRelatedCostIncurredAndExpectedCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringAndRelatedCostIncurredAndExpectedCost" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringAndRelatedCostIncurredAndExpectedCost" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDate" xlink:label="RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDate" xlink:title="RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDate" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDate" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated" xlink:label="RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated" xlink:title="RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RestructuringChargesDisclosureAbstract" xlink:to="RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated" xlink:title="definition: RestructuringChargesDisclosureAbstract to RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated" order="1.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureLitigationAndContingenciesDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LossContingenciesLineItems" xlink:label="LossContingenciesLineItems" xlink:title="LossContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LossContingenciesTable" xlink:label="LossContingenciesTable" xlink:title="LossContingenciesTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="LossContingenciesLineItems" xlink:to="LossContingenciesTable" xlink:title="definition: LossContingenciesLineItems to LossContingenciesTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:label="LossContingenciesByNatureOfContingencyAxis" xlink:title="LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="LossContingenciesTable" xlink:to="LossContingenciesByNatureOfContingencyAxis" xlink:title="definition: LossContingenciesTable to LossContingenciesByNatureOfContingencyAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="LossContingencyNatureDomain" xlink:title="LossContingencyNatureDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="LossContingenciesByNatureOfContingencyAxis" xlink:to="LossContingencyNatureDomain" xlink:title="definition: LossContingenciesByNatureOfContingencyAxis to LossContingencyNatureDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="LossContingencyNatureDomain_2" xlink:title="LossContingencyNatureDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="LossContingenciesByNatureOfContingencyAxis" xlink:to="LossContingencyNatureDomain_2" xlink:title="definition: LossContingenciesByNatureOfContingencyAxis to LossContingencyNatureDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InkjetPrinterLitigationMember" xlink:label="InkjetPrinterLitigationMember" xlink:title="InkjetPrinterLitigationMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingencyNatureDomain" xlink:to="InkjetPrinterLitigationMember" xlink:title="definition: LossContingencyNatureDomain to InkjetPrinterLitigationMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_IndiaDirectorateOfRevenueIntelligenceProccedingsMember" xlink:label="IndiaDirectorateOfRevenueIntelligenceProccedingsMember" xlink:title="IndiaDirectorateOfRevenueIntelligenceProccedingsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingencyNatureDomain" xlink:to="IndiaDirectorateOfRevenueIntelligenceProccedingsMember" xlink:title="definition: LossContingencyNatureDomain to IndiaDirectorateOfRevenueIntelligenceProccedingsMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RussiaGPOInvestigationsMember" xlink:label="RussiaGPOInvestigationsMember" xlink:title="RussiaGPOInvestigationsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingencyNatureDomain" xlink:to="RussiaGPOInvestigationsMember" xlink:title="definition: LossContingencyNatureDomain to RussiaGPOInvestigationsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_UnfavorableRegulatoryActionMember" xlink:label="UnfavorableRegulatoryActionMember" xlink:title="UnfavorableRegulatoryActionMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingencyNatureDomain" xlink:to="UnfavorableRegulatoryActionMember" xlink:title="definition: LossContingencyNatureDomain to UnfavorableRegulatoryActionMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_UnitedStatesDepartmentOfJusticeComplaintMember" xlink:label="UnitedStatesDepartmentOfJusticeComplaintMember" xlink:title="UnitedStatesDepartmentOfJusticeComplaintMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingencyNatureDomain" xlink:to="UnitedStatesDepartmentOfJusticeComplaintMember" xlink:title="definition: LossContingencyNatureDomain to UnitedStatesDepartmentOfJusticeComplaintMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SkySubscribersServicesLimitedAndBritishSkyBroadcastingLimitedVEDSAndEDSLimitedUKMember" xlink:label="SkySubscribersServicesLimitedAndBritishSkyBroadcastingLimitedVEDSAndEDSLimitedUKMember" xlink:title="SkySubscribersServicesLimitedAndBritishSkyBroadcastingLimitedVEDSAndEDSLimitedUKMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingencyNatureDomain" xlink:to="SkySubscribersServicesLimitedAndBritishSkyBroadcastingLimitedVEDSAndEDSLimitedUKMember" xlink:title="definition: LossContingencyNatureDomain to SkySubscribersServicesLimitedAndBritishSkyBroadcastingLimitedVEDSAndEDSLimitedUKMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CornellUniversityAndCornellResearchFoundationMember" xlink:label="CornellUniversityAndCornellResearchFoundationMember" xlink:title="CornellUniversityAndCornellResearchFoundationMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingencyNatureDomain" xlink:to="CornellUniversityAndCornellResearchFoundationMember" xlink:title="definition: LossContingencyNatureDomain to CornellUniversityAndCornellResearchFoundationMember" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ECTMember" xlink:label="ECTMember" xlink:title="ECTMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingencyNatureDomain" xlink:to="ECTMember" xlink:title="definition: LossContingencyNatureDomain to ECTMember" order="3.5"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LitigationAndContingenciesDisclosureAbstract" xlink:label="LitigationAndContingenciesDisclosureAbstract" xlink:title="LitigationAndContingenciesDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LossContingenciesLineItems" xlink:to="LitigationAndContingenciesDisclosureAbstract" xlink:title="definition: LossContingenciesLineItems to LitigationAndContingenciesDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TotalSettlementAgreementAmountOfCredits" xlink:label="TotalSettlementAgreementAmountOfCredits" xlink:title="TotalSettlementAgreementAmountOfCredits"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="TotalSettlementAgreementAmountOfCredits" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to TotalSettlementAgreementAmountOfCredits" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LossContingencyDamagesClaimed" xlink:label="LossContingencyDamagesClaimed" xlink:title="LossContingencyDamagesClaimed"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="LossContingencyDamagesClaimed" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to LossContingencyDamagesClaimed" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AdditionalLossContingencyDamagesClaimed" xlink:label="AdditionalLossContingencyDamagesClaimed" xlink:title="AdditionalLossContingencyDamagesClaimed"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="AdditionalLossContingencyDamagesClaimed" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to AdditionalLossContingencyDamagesClaimed" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LossContingencyDepositToPreventInterruptionOfBusiness" xlink:label="LossContingencyDepositToPreventInterruptionOfBusiness" xlink:title="LossContingencyDepositToPreventInterruptionOfBusiness"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="LossContingencyDepositToPreventInterruptionOfBusiness" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to LossContingencyDepositToPreventInterruptionOfBusiness" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LossContingencyDepositDemandedUnderNotices" xlink:label="LossContingencyDepositDemandedUnderNotices" xlink:title="LossContingencyDepositDemandedUnderNotices"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="LossContingencyDepositDemandedUnderNotices" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to LossContingencyDepositDemandedUnderNotices" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DutyDifferentialDepositDemandedUnderNotices" xlink:label="DutyDifferentialDepositDemandedUnderNotices" xlink:title="DutyDifferentialDepositDemandedUnderNotices"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="DutyDifferentialDepositDemandedUnderNotices" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to DutyDifferentialDepositDemandedUnderNotices" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CivilPenaltiesPerViolationAndEquitableRemedies" xlink:label="CivilPenaltiesPerViolationAndEquitableRemedies" xlink:title="CivilPenaltiesPerViolationAndEquitableRemedies"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="CivilPenaltiesPerViolationAndEquitableRemedies" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to CivilPenaltiesPerViolationAndEquitableRemedies" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TransactionOfFormerSubsidiaryUnderInvestigation" xlink:label="TransactionOfFormerSubsidiaryUnderInvestigation" xlink:title="TransactionOfFormerSubsidiaryUnderInvestigation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="TransactionOfFormerSubsidiaryUnderInvestigation" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to TransactionOfFormerSubsidiaryUnderInvestigation" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CriminalPenaltiesPerViolation" xlink:label="CriminalPenaltiesPerViolation" xlink:title="CriminalPenaltiesPerViolation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="CriminalPenaltiesPerViolation" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to CriminalPenaltiesPerViolation" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TotalSettlementAgreementPayment" xlink:label="TotalSettlementAgreementPayment" xlink:title="TotalSettlementAgreementPayment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="TotalSettlementAgreementPayment" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to TotalSettlementAgreementPayment" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SettlementAgreementMaintainCorporateInvestigationYears" xlink:label="SettlementAgreementMaintainCorporateInvestigationYears" xlink:title="SettlementAgreementMaintainCorporateInvestigationYears"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="SettlementAgreementMaintainCorporateInvestigationYears" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to SettlementAgreementMaintainCorporateInvestigationYears" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SettlementAgreementPortionForPrivacyAndPiracyFund" xlink:label="SettlementAgreementPortionForPrivacyAndPiracyFund" xlink:title="SettlementAgreementPortionForPrivacyAndPiracyFund"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="SettlementAgreementPortionForPrivacyAndPiracyFund" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to SettlementAgreementPortionForPrivacyAndPiracyFund" use="optional" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SettlementAgreementPortionUsedToPayStatutoryDamages" xlink:label="SettlementAgreementPortionUsedToPayStatutoryDamages" xlink:title="SettlementAgreementPortionUsedToPayStatutoryDamages"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="SettlementAgreementPortionUsedToPayStatutoryDamages" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to SettlementAgreementPortionUsedToPayStatutoryDamages" use="optional" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SettlementAgreementPortionUsedToReimburseInvestigationCosts" xlink:label="SettlementAgreementPortionUsedToReimburseInvestigationCosts" xlink:title="SettlementAgreementPortionUsedToReimburseInvestigationCosts"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="SettlementAgreementPortionUsedToReimburseInvestigationCosts" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to SettlementAgreementPortionUsedToReimburseInvestigationCosts" use="optional" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_JuryVerdictAwardedToPlaintiffs" xlink:label="JuryVerdictAwardedToPlaintiffs" xlink:title="JuryVerdictAwardedToPlaintiffs"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="JuryVerdictAwardedToPlaintiffs" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to JuryVerdictAwardedToPlaintiffs" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CourtReducedAwardToPlaintiffs" xlink:label="CourtReducedAwardToPlaintiffs" xlink:title="CourtReducedAwardToPlaintiffs"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="CourtReducedAwardToPlaintiffs" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to CourtReducedAwardToPlaintiffs" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PreJudgmentInterestAwardedToPlaintiffs" xlink:label="PreJudgmentInterestAwardedToPlaintiffs" xlink:title="PreJudgmentInterestAwardedToPlaintiffs"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="PreJudgmentInterestAwardedToPlaintiffs" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to PreJudgmentInterestAwardedToPlaintiffs" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LitigationCostsAwardedToPlaintiffs" xlink:label="LitigationCostsAwardedToPlaintiffs" xlink:title="LitigationCostsAwardedToPlaintiffs"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="LitigationCostsAwardedToPlaintiffs" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to LitigationCostsAwardedToPlaintiffs" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DamagesClaimed" xlink:label="DamagesClaimed" xlink:title="DamagesClaimed"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="DamagesClaimed" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to DamagesClaimed" use="optional" order="8004.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CounterClaimedDamages" xlink:label="CounterClaimedDamages" xlink:title="CounterClaimedDamages"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="CounterClaimedDamages" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to CounterClaimedDamages" use="optional" order="8005.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InterimPaymentMadeFebruary2010" xlink:label="InterimPaymentMadeFebruary2010" xlink:title="InterimPaymentMadeFebruary2010"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="InterimPaymentMadeFebruary2010" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to InterimPaymentMadeFebruary2010" use="optional" order="8006.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InterimPaymentOrderedMarch2010" xlink:label="InterimPaymentOrderedMarch2010" xlink:title="InterimPaymentOrderedMarch2010"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="InterimPaymentOrderedMarch2010" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to InterimPaymentOrderedMarch2010" use="optional" order="8007.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TotalSettlementAgreementAmount" xlink:label="TotalSettlementAgreementAmount" xlink:title="TotalSettlementAgreementAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="TotalSettlementAgreementAmount" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to TotalSettlementAgreementAmount" use="optional" order="8008.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SettlementAgreementAppealDays" xlink:label="SettlementAgreementAppealDays" xlink:title="SettlementAgreementAppealDays"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="SettlementAgreementAppealDays" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to SettlementAgreementAppealDays" use="optional" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SettlementAgreementSuspendBidPeriodYears" xlink:label="SettlementAgreementSuspendBidPeriodYears" xlink:title="SettlementAgreementSuspendBidPeriodYears"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="SettlementAgreementSuspendBidPeriodYears" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to SettlementAgreementSuspendBidPeriodYears" use="optional" order="16.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NumberOfContractsRelatedToAllegedImproprieties" xlink:label="NumberOfContractsRelatedToAllegedImproprieties" xlink:title="NumberOfContractsRelatedToAllegedImproprieties"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="LitigationAndContingenciesDisclosureAbstract" xlink:to="NumberOfContractsRelatedToAllegedImproprieties" xlink:title="definition: LitigationAndContingenciesDisclosureAbstract to NumberOfContractsRelatedToAllegedImproprieties" use="optional" order="17.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureAcquisitionsDetails3">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DisposalGroupNotDiscontinuedOperationDisposalDisclosuresLineItems" xlink:label="DisposalGroupNotDiscontinuedOperationDisposalDisclosuresLineItems" xlink:title="DisposalGroupNotDiscontinuedOperationDisposalDisclosuresLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ExpectedProceedsFromDivestitureOfBusiness" xlink:label="ExpectedProceedsFromDivestitureOfBusiness" xlink:title="ExpectedProceedsFromDivestitureOfBusiness"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DisposalGroupNotDiscontinuedOperationDisposalDisclosuresLineItems" xlink:to="ExpectedProceedsFromDivestitureOfBusiness" xlink:title="definition: DisposalGroupNotDiscontinuedOperationDisposalDisclosuresLineItems to ExpectedProceedsFromDivestitureOfBusiness" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:label="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:title="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DisposalGroupNotDiscontinuedOperationDisposalDisclosuresLineItems" xlink:to="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:title="definition: DisposalGroupNotDiscontinuedOperationDisposalDisclosuresLineItems to IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" use="optional" order="1.0" p0:contextElement="segment" p0:closed="true"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:title="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:to="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:title="definition: IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable to IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:title="PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:title="definition: IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis to PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain_2" xlink:title="PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain_2" xlink:title="definition: IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis to PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PendingDisposalExcelleratedHROLLPMember" xlink:label="PendingDisposalExcelleratedHROLLPMember" xlink:title="PendingDisposalExcelleratedHROLLPMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:to="PendingDisposalExcelleratedHROLLPMember" xlink:title="definition: PendingDisposalGroupsIncludingDiscontinuedOperationsNameDomain to PendingDisposalExcelleratedHROLLPMember" use="optional" order="1.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CashEquivalentsAndAvailableForSaleInvestmentsLineItems" xlink:label="CashEquivalentsAndAvailableForSaleInvestmentsLineItems" xlink:title="CashEquivalentsAndAvailableForSaleInvestmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" xlink:label="ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" xlink:title="ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="CashEquivalentsAndAvailableForSaleInvestmentsLineItems" xlink:to="ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" xlink:title="definition: CashEquivalentsAndAvailableForSaleInvestmentsLineItems to ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" use="optional" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:label="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:title="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" xlink:to="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:title="definition: ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable to ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TypesOfFinancialInstrumentsDomain" xlink:label="TypesOfFinancialInstrumentsDomain" xlink:title="TypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:to="TypesOfFinancialInstrumentsDomain" xlink:title="definition: ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis to TypesOfFinancialInstrumentsDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TypesOfFinancialInstrumentsDomain" xlink:label="TypesOfFinancialInstrumentsDomain_2" xlink:title="TypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:to="TypesOfFinancialInstrumentsDomain_2" xlink:title="definition: ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis to TypesOfFinancialInstrumentsDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashEquivalentsMember" xlink:label="CashEquivalentsMember" xlink:title="CashEquivalentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TypesOfFinancialInstrumentsDomain" xlink:to="CashEquivalentsMember" xlink:title="definition: TypesOfFinancialInstrumentsDomain to CashEquivalentsMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TimeDepositsCashEquivalentMember" xlink:label="TimeDepositsCashEquivalentMember" xlink:title="TimeDepositsCashEquivalentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashEquivalentsMember" xlink:to="TimeDepositsCashEquivalentMember" xlink:title="definition: CashEquivalentsMember to TimeDepositsCashEquivalentMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CommercialPaperMember" xlink:label="CommercialPaperMember" xlink:title="CommercialPaperMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashEquivalentsMember" xlink:to="CommercialPaperMember" xlink:title="definition: CashEquivalentsMember to CommercialPaperMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="MoneyMarketFundsMember" xlink:title="MoneyMarketFundsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashEquivalentsMember" xlink:to="MoneyMarketFundsMember" xlink:title="definition: CashEquivalentsMember to MoneyMarketFundsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtSecuritiesMember" xlink:label="DebtSecuritiesMember" xlink:title="DebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TypesOfFinancialInstrumentsDomain" xlink:to="DebtSecuritiesMember" xlink:title="definition: TypesOfFinancialInstrumentsDomain to DebtSecuritiesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_USTreasurySecuritiesMember" xlink:label="USTreasurySecuritiesMember" xlink:title="USTreasurySecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="USTreasurySecuritiesMember" xlink:title="definition: DebtSecuritiesMember to USTreasurySecuritiesMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ForeignBondsMember" xlink:label="ForeignBondsMember" xlink:title="ForeignBondsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="ForeignBondsMember" xlink:title="definition: DebtSecuritiesMember to ForeignBondsMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AllOtherCorporateBondsMember" xlink:label="AllOtherCorporateBondsMember" xlink:title="AllOtherCorporateBondsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="AllOtherCorporateBondsMember" xlink:title="definition: DebtSecuritiesMember to AllOtherCorporateBondsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TimeDepositsDebtSecuritiesMember" xlink:label="TimeDepositsDebtSecuritiesMember" xlink:title="TimeDepositsDebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="TimeDepositsDebtSecuritiesMember" xlink:title="definition: DebtSecuritiesMember to TimeDepositsDebtSecuritiesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_MoneyMarketFundsDebtSecuritiesMember" xlink:label="MoneyMarketFundsDebtSecuritiesMember" xlink:title="MoneyMarketFundsDebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="MoneyMarketFundsDebtSecuritiesMember" xlink:title="definition: DebtSecuritiesMember to MoneyMarketFundsDebtSecuritiesMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EquitySecuritiesPublicCompaniesMember" xlink:label="EquitySecuritiesPublicCompaniesMember" xlink:title="EquitySecuritiesPublicCompaniesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TypesOfFinancialInstrumentsDomain" xlink:to="EquitySecuritiesPublicCompaniesMember" xlink:title="definition: TypesOfFinancialInstrumentsDomain to EquitySecuritiesPublicCompaniesMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancialInstrumentsDisclosureAbstract" xlink:label="FinancialInstrumentsDisclosureAbstract" xlink:title="FinancialInstrumentsDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashEquivalentsAndAvailableForSaleInvestmentsLineItems" xlink:to="FinancialInstrumentsDisclosureAbstract" xlink:title="definition: CashEquivalentsAndAvailableForSaleInvestmentsLineItems to FinancialInstrumentsDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CashEquivalentsAndAvailableForSaleSecuritiesCost" xlink:label="CashEquivalentsAndAvailableForSaleSecuritiesCost" xlink:title="CashEquivalentsAndAvailableForSaleSecuritiesCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="CashEquivalentsAndAvailableForSaleSecuritiesCost" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to CashEquivalentsAndAvailableForSaleSecuritiesCost" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:label="AvailableForSaleSecuritiesAmortizedCost" xlink:title="AvailableForSaleSecuritiesAmortizedCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="AvailableForSaleSecuritiesAmortizedCost" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to AvailableForSaleSecuritiesAmortizedCost" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AvailableForSaleSecuritiesGrossUnrealizedGain" xlink:label="AvailableForSaleSecuritiesGrossUnrealizedGain" xlink:title="AvailableForSaleSecuritiesGrossUnrealizedGain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="AvailableForSaleSecuritiesGrossUnrealizedGain" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to AvailableForSaleSecuritiesGrossUnrealizedGain" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CashEquivalentsAndAvailableForSaleSecuritiesFairValue" xlink:label="CashEquivalentsAndAvailableForSaleSecuritiesFairValue" xlink:title="CashEquivalentsAndAvailableForSaleSecuritiesFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="CashEquivalentsAndAvailableForSaleSecuritiesFairValue" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to CashEquivalentsAndAvailableForSaleSecuritiesFairValue" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CashEquivalentsFairValue" xlink:label="CashEquivalentsFairValue" xlink:title="CashEquivalentsFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="CashEquivalentsFairValue" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to CashEquivalentsFairValue" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AvailableForSaleSecuritiesFairValue" xlink:label="AvailableForSaleSecuritiesFairValue" xlink:title="AvailableForSaleSecuritiesFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="AvailableForSaleSecuritiesFairValue" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to AvailableForSaleSecuritiesFairValue" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AvailableForSaleSecuritiesUnrealizedLossGross" xlink:label="AvailableForSaleSecuritiesUnrealizedLossGross" xlink:title="AvailableForSaleSecuritiesUnrealizedLossGross"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="AvailableForSaleSecuritiesUnrealizedLossGross" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to AvailableForSaleSecuritiesUnrealizedLossGross" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashEquivalentsAtCarryingValue" xlink:label="CashEquivalentsAtCarryingValue" xlink:title="CashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="CashEquivalentsAtCarryingValue" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to CashEquivalentsAtCarryingValue" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss" xlink:label="AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss" xlink:title="AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ImpairmentOfInvestments" xlink:label="ImpairmentOfInvestments" xlink:title="ImpairmentOfInvestments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="ImpairmentOfInvestments" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to ImpairmentOfInvestments" use="optional" order="10.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails6">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" xlink:label="ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" xlink:title="ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:label="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:title="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" xlink:to="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:title="definition: ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable to ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TypesOfFinancialInstrumentsDomain" xlink:label="TypesOfFinancialInstrumentsDomain" xlink:title="TypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis" xlink:to="TypesOfFinancialInstrumentsDomain" xlink:title="definition: ScheduleOfAvailableForSaleSecuritiesAndCashEquivalentsTypesOfFinancialInstrumentsAxis to TypesOfFinancialInstrumentsDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtSecuritiesMember" xlink:label="DebtSecuritiesMember" xlink:title="DebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TypesOfFinancialInstrumentsDomain" xlink:to="DebtSecuritiesMember" xlink:title="definition: TypesOfFinancialInstrumentsDomain to DebtSecuritiesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancialInstrumentsDisclosureAbstract" xlink:label="FinancialInstrumentsDisclosureAbstract" xlink:title="FinancialInstrumentsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount" xlink:label="MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount" xlink:title="MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to MarketableSecuritiesRealizedGainLossOtherThanTemporaryImpairmentsAmount" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="InvestmentIncomeInterest" xlink:title="InvestmentIncomeInterest"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="InvestmentIncomeInterest" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to InvestmentIncomeInterest" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AvailableForSaleInvestmentsLineItems" xlink:label="AvailableForSaleInvestmentsLineItems" xlink:title="AvailableForSaleInvestmentsLineItems"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="AvailableForSaleInvestmentsLineItems" xlink:to="ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" xlink:title="definition: AvailableForSaleInvestmentsLineItems to ScheduleofAvailableforSaleSecuritiesandCashEquivalentsTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AvailableForSaleInvestmentsLineItems" xlink:to="FinancialInstrumentsDisclosureAbstract" xlink:title="definition: AvailableForSaleInvestmentsLineItems to FinancialInstrumentsDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails5">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtSecuritiesMember" xlink:label="DebtSecuritiesMember" xlink:title="DebtSecuritiesMember"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="CorporateDebtSecuritiesMember" xlink:title="CorporateDebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="CorporateDebtSecuritiesMember" xlink:title="definition: DebtSecuritiesMember to CorporateDebtSecuritiesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember" xlink:label="USStatesAndPoliticalSubdivisionsMember" xlink:title="USStatesAndPoliticalSubdivisionsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="USStatesAndPoliticalSubdivisionsMember" xlink:title="definition: DebtSecuritiesMember to USStatesAndPoliticalSubdivisionsMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="DefinedBenefitPlanDisclosureLineItems" xlink:title="DefinedBenefitPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to ScheduleOfDefinedBenefitPlansDisclosuresTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:title="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="DefinedBenefitPlansDomain" xlink:title="DefinedBenefitPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:to="DefinedBenefitPlansDomain" xlink:title="definition: DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis to DefinedBenefitPlansDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="PensionPlansDefinedBenefitMember" xlink:title="PensionPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDomain" xlink:to="PensionPlansDefinedBenefitMember" xlink:title="definition: DefinedBenefitPlansDomain to PensionPlansDefinedBenefitMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:label="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:title="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:title="definition: PensionPlansDefinedBenefitMember to UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignPensionPlansDefinedBenefitMember" xlink:label="ForeignPensionPlansDefinedBenefitMember" xlink:title="ForeignPensionPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="ForeignPensionPlansDefinedBenefitMember" xlink:title="definition: PensionPlansDefinedBenefitMember to ForeignPensionPlansDefinedBenefitMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:title="OtherPostretirementBenefitPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDomain" xlink:to="OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:title="definition: DefinedBenefitPlansDomain to OtherPostretirementBenefitPlansDefinedBenefitMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:label="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:title="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValuePlanAssetMeasurementDomain" xlink:label="FairValuePlanAssetMeasurementDomain" xlink:title="FairValuePlanAssetMeasurementDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:to="FairValuePlanAssetMeasurementDomain" xlink:title="definition: DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis to FairValuePlanAssetMeasurementDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValuePlanAssetMeasurementDomain" xlink:label="FairValuePlanAssetMeasurementDomain_2" xlink:title="FairValuePlanAssetMeasurementDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:to="FairValuePlanAssetMeasurementDomain_2" xlink:title="definition: DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis to FairValuePlanAssetMeasurementDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="FairValueInputsLevel1Member" xlink:title="FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValuePlanAssetMeasurementDomain" xlink:to="FairValueInputsLevel1Member" xlink:title="definition: FairValuePlanAssetMeasurementDomain to FairValueInputsLevel1Member" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="FairValueInputsLevel2Member" xlink:title="FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValuePlanAssetMeasurementDomain" xlink:to="FairValueInputsLevel2Member" xlink:title="definition: FairValuePlanAssetMeasurementDomain to FairValueInputsLevel2Member" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="FairValueInputsLevel3Member" xlink:title="FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValuePlanAssetMeasurementDomain" xlink:to="FairValueInputsLevel3Member" xlink:title="definition: FairValuePlanAssetMeasurementDomain to FairValueInputsLevel3Member" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:title="DefinedBenefitPlanByPlanAssetCategoriesAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlanByPlanAssetCategoriesAxis" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="PlanAssetCategoriesDomain" xlink:title="PlanAssetCategoriesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:to="PlanAssetCategoriesDomain" xlink:title="definition: DefinedBenefitPlanByPlanAssetCategoriesAxis to PlanAssetCategoriesDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="PlanAssetCategoriesDomain_2" xlink:title="PlanAssetCategoriesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:to="PlanAssetCategoriesDomain_2" xlink:title="definition: DefinedBenefitPlanByPlanAssetCategoriesAxis to PlanAssetCategoriesDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="EquitySecuritiesMember" xlink:title="EquitySecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="EquitySecuritiesMember" xlink:title="definition: PlanAssetCategoriesDomain to EquitySecuritiesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EquitySecuritiesUSMember" xlink:label="EquitySecuritiesUSMember" xlink:title="EquitySecuritiesUSMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquitySecuritiesMember" xlink:to="EquitySecuritiesUSMember" xlink:title="definition: EquitySecuritiesMember to EquitySecuritiesUSMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EquitySecuritiesNonUSMember" xlink:label="EquitySecuritiesNonUSMember" xlink:title="EquitySecuritiesNonUSMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquitySecuritiesMember" xlink:to="EquitySecuritiesNonUSMember" xlink:title="definition: EquitySecuritiesMember to EquitySecuritiesNonUSMember" use="optional" order="2.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="DebtSecuritiesMember" xlink:title="definition: PlanAssetCategoriesDomain to DebtSecuritiesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AlternativeInvestmentsMember" xlink:label="AlternativeInvestmentsMember" xlink:title="AlternativeInvestmentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="AlternativeInvestmentsMember" xlink:title="definition: PlanAssetCategoriesDomain to AlternativeInvestmentsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PrivateEquityFundsMember" xlink:label="PrivateEquityFundsMember" xlink:title="PrivateEquityFundsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AlternativeInvestmentsMember" xlink:to="PrivateEquityFundsMember" xlink:title="definition: AlternativeInvestmentsMember to PrivateEquityFundsMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HybridsInvestmentMember" xlink:label="HybridsInvestmentMember" xlink:title="HybridsInvestmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AlternativeInvestmentsMember" xlink:to="HybridsInvestmentMember" xlink:title="definition: AlternativeInvestmentsMember to HybridsInvestmentMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_HedgeFundsMember" xlink:label="HedgeFundsMember" xlink:title="HedgeFundsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AlternativeInvestmentsMember" xlink:to="HedgeFundsMember" xlink:title="definition: AlternativeInvestmentsMember to HedgeFundsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RealEstateFundsMember" xlink:label="RealEstateFundsMember" xlink:title="RealEstateFundsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="RealEstateFundsMember" xlink:title="definition: PlanAssetCategoriesDomain to RealEstateFundsMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InsuranceGroupAnnuityContractsMember" xlink:label="InsuranceGroupAnnuityContractsMember" xlink:title="InsuranceGroupAnnuityContractsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="InsuranceGroupAnnuityContractsMember" xlink:title="definition: PlanAssetCategoriesDomain to InsuranceGroupAnnuityContractsMember" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashAndCashEquivalentsMember" xlink:label="CashAndCashEquivalentsMember" xlink:title="CashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="CashAndCashEquivalentsMember" xlink:title="definition: PlanAssetCategoriesDomain to CashAndCashEquivalentsMember" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherPlanAssetsMember" xlink:label="OtherPlanAssetsMember" xlink:title="OtherPlanAssetsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="OtherPlanAssetsMember" xlink:title="definition: PlanAssetCategoriesDomain to OtherPlanAssetsMember" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:label="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="RetirementAndPostRetirementBenefitPlansDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to RetirementAndPostRetirementBenefitPlansDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:label="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:title="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" order="1.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails4">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtSecuritiesMember" xlink:label="DebtSecuritiesMember" xlink:title="DebtSecuritiesMember"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="CorporateDebtSecuritiesMember" xlink:title="CorporateDebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="CorporateDebtSecuritiesMember" xlink:title="definition: DebtSecuritiesMember to CorporateDebtSecuritiesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember" xlink:label="USStatesAndPoliticalSubdivisionsMember" xlink:title="USStatesAndPoliticalSubdivisionsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtSecuritiesMember" xlink:to="USStatesAndPoliticalSubdivisionsMember" xlink:title="definition: DebtSecuritiesMember to USStatesAndPoliticalSubdivisionsMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="DefinedBenefitPlanDisclosureLineItems" xlink:title="DefinedBenefitPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to ScheduleOfDefinedBenefitPlansDisclosuresTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:title="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="DefinedBenefitPlansDomain" xlink:title="DefinedBenefitPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:to="DefinedBenefitPlansDomain" xlink:title="definition: DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis to DefinedBenefitPlansDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="PensionPlansDefinedBenefitMember" xlink:title="PensionPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDomain" xlink:to="PensionPlansDefinedBenefitMember" xlink:title="definition: DefinedBenefitPlansDomain to PensionPlansDefinedBenefitMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:label="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:title="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:title="definition: PensionPlansDefinedBenefitMember to UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignPensionPlansDefinedBenefitMember" xlink:label="ForeignPensionPlansDefinedBenefitMember" xlink:title="ForeignPensionPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="ForeignPensionPlansDefinedBenefitMember" xlink:title="definition: PensionPlansDefinedBenefitMember to ForeignPensionPlansDefinedBenefitMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember" xlink:label="UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember" xlink:title="UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember" xlink:title="definition: PensionPlansDefinedBenefitMember to UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:title="OtherPostretirementBenefitPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDomain" xlink:to="OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:title="definition: DefinedBenefitPlansDomain to OtherPostretirementBenefitPlansDefinedBenefitMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:label="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:title="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValuePlanAssetMeasurementDomain" xlink:label="FairValuePlanAssetMeasurementDomain" xlink:title="FairValuePlanAssetMeasurementDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis" xlink:to="FairValuePlanAssetMeasurementDomain" xlink:title="definition: DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis to FairValuePlanAssetMeasurementDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="FairValueInputsLevel3Member" xlink:title="FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValuePlanAssetMeasurementDomain" xlink:to="FairValueInputsLevel3Member" xlink:title="definition: FairValuePlanAssetMeasurementDomain to FairValueInputsLevel3Member" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:label="DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:title="DefinedBenefitPlanByPlanAssetCategoriesAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlanByPlanAssetCategoriesAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PlanAssetCategoriesDomain" xlink:label="PlanAssetCategoriesDomain" xlink:title="PlanAssetCategoriesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlanByPlanAssetCategoriesAxis" xlink:to="PlanAssetCategoriesDomain" xlink:title="definition: DefinedBenefitPlanByPlanAssetCategoriesAxis to PlanAssetCategoriesDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="EquitySecuritiesMember" xlink:title="EquitySecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="EquitySecuritiesMember" xlink:title="definition: PlanAssetCategoriesDomain to EquitySecuritiesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EquitySecuritiesUSMember" xlink:label="EquitySecuritiesUSMember" xlink:title="EquitySecuritiesUSMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquitySecuritiesMember" xlink:to="EquitySecuritiesUSMember" xlink:title="definition: EquitySecuritiesMember to EquitySecuritiesUSMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EquitySecuritiesNonUSMember" xlink:label="EquitySecuritiesNonUSMember" xlink:title="EquitySecuritiesNonUSMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EquitySecuritiesMember" xlink:to="EquitySecuritiesNonUSMember" xlink:title="definition: EquitySecuritiesMember to EquitySecuritiesNonUSMember" use="optional" order="2.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="DebtSecuritiesMember" xlink:title="definition: PlanAssetCategoriesDomain to DebtSecuritiesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AlternativeInvestmentsMember" xlink:label="AlternativeInvestmentsMember" xlink:title="AlternativeInvestmentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="AlternativeInvestmentsMember" xlink:title="definition: PlanAssetCategoriesDomain to AlternativeInvestmentsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PrivateEquityFundsMember" xlink:label="PrivateEquityFundsMember" xlink:title="PrivateEquityFundsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AlternativeInvestmentsMember" xlink:to="PrivateEquityFundsMember" xlink:title="definition: AlternativeInvestmentsMember to PrivateEquityFundsMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HybridsInvestmentMember" xlink:label="HybridsInvestmentMember" xlink:title="HybridsInvestmentMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AlternativeInvestmentsMember" xlink:to="HybridsInvestmentMember" xlink:title="definition: AlternativeInvestmentsMember to HybridsInvestmentMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_HedgeFundsMember" xlink:label="HedgeFundsMember" xlink:title="HedgeFundsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AlternativeInvestmentsMember" xlink:to="HedgeFundsMember" xlink:title="definition: AlternativeInvestmentsMember to HedgeFundsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RealEstateFundsMember" xlink:label="RealEstateFundsMember" xlink:title="RealEstateFundsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="RealEstateFundsMember" xlink:title="definition: PlanAssetCategoriesDomain to RealEstateFundsMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InsuranceGroupAnnuityContractsMember" xlink:label="InsuranceGroupAnnuityContractsMember" xlink:title="InsuranceGroupAnnuityContractsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="InsuranceGroupAnnuityContractsMember" xlink:title="definition: PlanAssetCategoriesDomain to InsuranceGroupAnnuityContractsMember" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashAndCashEquivalentsMember" xlink:label="CashAndCashEquivalentsMember" xlink:title="CashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="CashAndCashEquivalentsMember" xlink:title="definition: PlanAssetCategoriesDomain to CashAndCashEquivalentsMember" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherPlanAssetsMember" xlink:label="OtherPlanAssetsMember" xlink:title="OtherPlanAssetsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PlanAssetCategoriesDomain" xlink:to="OtherPlanAssetsMember" xlink:title="definition: PlanAssetCategoriesDomain to OtherPlanAssetsMember" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:label="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="RetirementAndPostRetirementBenefitPlansDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to RetirementAndPostRetirementBenefitPlansDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:label="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:title="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanFairValueOfPlanAssetsRollForward" xlink:label="DefinedBenefitPlanFairValueOfPlanAssetsRollForward" xlink:title="DefinedBenefitPlanFairValueOfPlanAssetsRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanFairValueOfPlanAssetsRollForward" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanFairValueOfPlanAssetsRollForward" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsAbstract" xlink:label="DefinedBenefitPlanActualReturnOnPlanAssetsAbstract" xlink:title="DefinedBenefitPlanActualReturnOnPlanAssetsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanFairValueOfPlanAssetsRollForward" xlink:to="DefinedBenefitPlanActualReturnOnPlanAssetsAbstract" xlink:title="definition: DefinedBenefitPlanFairValueOfPlanAssetsRollForward to DefinedBenefitPlanActualReturnOnPlanAssetsAbstract" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld" xlink:label="DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld" xlink:title="DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanActualReturnOnPlanAssetsAbstract" xlink:to="DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld" xlink:title="definition: DefinedBenefitPlanActualReturnOnPlanAssetsAbstract to DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod" xlink:label="DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod" xlink:title="DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanActualReturnOnPlanAssetsAbstract" xlink:to="DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod" xlink:title="definition: DefinedBenefitPlanActualReturnOnPlanAssetsAbstract to DefinedBenefitPlanActualReturnOnPlanAssetsSoldDuringPeriod" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanPurchasesSalesAndSettlements" xlink:label="DefinedBenefitPlanPurchasesSalesAndSettlements" xlink:title="DefinedBenefitPlanPurchasesSalesAndSettlements"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanActualReturnOnPlanAssetsAbstract" xlink:to="DefinedBenefitPlanPurchasesSalesAndSettlements" xlink:title="definition: DefinedBenefitPlanActualReturnOnPlanAssetsAbstract to DefinedBenefitPlanPurchasesSalesAndSettlements" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanTransfersBetweenMeasurementLevels" xlink:label="DefinedBenefitPlanTransfersBetweenMeasurementLevels" xlink:title="DefinedBenefitPlanTransfersBetweenMeasurementLevels"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanActualReturnOnPlanAssetsAbstract" xlink:to="DefinedBenefitPlanTransfersBetweenMeasurementLevels" xlink:title="definition: DefinedBenefitPlanActualReturnOnPlanAssetsAbstract to DefinedBenefitPlanTransfersBetweenMeasurementLevels" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:label="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:title="DefinedBenefitPlanAssetsTargetAllocationsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAssetsTargetAllocationsAbstract" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicEquitySecurities" xlink:label="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicEquitySecurities" xlink:title="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicEquitySecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:to="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicEquitySecurities" xlink:title="definition: DefinedBenefitPlanAssetsTargetAllocationsAbstract to DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicEquitySecurities" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanTargetAllocationPercentageOfAssetsPrivateEquitySecurities" xlink:label="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPrivateEquitySecurities" xlink:title="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPrivateEquitySecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:to="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPrivateEquitySecurities" xlink:title="definition: DefinedBenefitPlanAssetsTargetAllocationsAbstract to DefinedBenefitPlanTargetAllocationPercentageOfAssetsPrivateEquitySecurities" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstate" xlink:label="DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstate" xlink:title="DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:to="DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstate" xlink:title="definition: DefinedBenefitPlanAssetsTargetAllocationsAbstract to DefinedBenefitPlanTargetAllocationPercentageOfAssetsRealEstate" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquityRelatedInvestmentSecurities" xlink:label="DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquityRelatedInvestmentSecurities" xlink:title="DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquityRelatedInvestmentSecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:to="DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquityRelatedInvestmentSecurities" xlink:title="definition: DefinedBenefitPlanAssetsTargetAllocationsAbstract to DefinedBenefitPlanTargetAllocationPercentageOfAssetsEquityRelatedInvestmentSecurities" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanTargetAssetAllocationPercentage" xlink:label="DefinedBenefitPlanTargetAssetAllocationPercentage" xlink:title="DefinedBenefitPlanTargetAssetAllocationPercentage"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:to="DefinedBenefitPlanTargetAssetAllocationPercentage" xlink:title="definition: DefinedBenefitPlanAssetsTargetAllocationsAbstract to DefinedBenefitPlanTargetAssetAllocationPercentage" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanTargetAllocationPercentageOfAssetsCash" xlink:label="DefinedBenefitPlanTargetAllocationPercentageOfAssetsCash" xlink:title="DefinedBenefitPlanTargetAllocationPercentageOfAssetsCash"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:to="DefinedBenefitPlanTargetAllocationPercentageOfAssetsCash" xlink:title="definition: DefinedBenefitPlanAssetsTargetAllocationsAbstract to DefinedBenefitPlanTargetAllocationPercentageOfAssetsCash" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities" xlink:label="DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities" xlink:title="DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:to="DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities" xlink:title="definition: DefinedBenefitPlanAssetsTargetAllocationsAbstract to DefinedBenefitPlanTargetAllocationPercentageOfAssetsDebtSecurities" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicDebtSecurities" xlink:label="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicDebtSecurities" xlink:title="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicDebtSecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAssetsTargetAllocationsAbstract" xlink:to="DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicDebtSecurities" xlink:title="definition: DefinedBenefitPlanAssetsTargetAllocationsAbstract to DefinedBenefitPlanTargetAllocationPercentageOfAssetsPublicDebtSecurities" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:label="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:title="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanPrivateEquitySecurities" xlink:label="DefinedBenefitPlanPrivateEquitySecurities" xlink:title="DefinedBenefitPlanPrivateEquitySecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:to="DefinedBenefitPlanPrivateEquitySecurities" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract to DefinedBenefitPlanPrivateEquitySecurities" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanRealEstate" xlink:label="DefinedBenefitPlanRealEstate" xlink:title="DefinedBenefitPlanRealEstate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:to="DefinedBenefitPlanRealEstate" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract to DefinedBenefitPlanRealEstate" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanDebtSecurities" xlink:label="DefinedBenefitPlanDebtSecurities" xlink:title="DefinedBenefitPlanDebtSecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:to="DefinedBenefitPlanDebtSecurities" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract to DefinedBenefitPlanDebtSecurities" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations" xlink:label="DefinedBenefitPlanWeightedAverageAssetAllocations" xlink:title="DefinedBenefitPlanWeightedAverageAssetAllocations"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:to="DefinedBenefitPlanWeightedAverageAssetAllocations" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract to DefinedBenefitPlanWeightedAverageAssetAllocations" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanPublicEquitySecurities" xlink:label="DefinedBenefitPlanPublicEquitySecurities" xlink:title="DefinedBenefitPlanPublicEquitySecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:to="DefinedBenefitPlanPublicEquitySecurities" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract to DefinedBenefitPlanPublicEquitySecurities" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanCashPlanAssets" xlink:label="DefinedBenefitPlanCashPlanAssets" xlink:title="DefinedBenefitPlanCashPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:to="DefinedBenefitPlanCashPlanAssets" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract to DefinedBenefitPlanCashPlanAssets" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanEquitySecurities" xlink:label="DefinedBenefitPlanEquitySecurities" xlink:title="DefinedBenefitPlanEquitySecurities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:to="DefinedBenefitPlanEquitySecurities" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract to DefinedBenefitPlanEquitySecurities" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanEquityRelatedInvestment" xlink:label="DefinedBenefitPlanEquityRelatedInvestment" xlink:title="DefinedBenefitPlanEquityRelatedInvestment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract" xlink:to="DefinedBenefitPlanEquityRelatedInvestment" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssetAllocationsAbstract to DefinedBenefitPlanEquityRelatedInvestment" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:label="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:title="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:label="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:title="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne" xlink:title="definition: DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract to DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearOne" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo" xlink:title="definition: DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract to DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearTwo" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree" xlink:title="definition: DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract to DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearThree" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour" xlink:title="definition: DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract to DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFour" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive" xlink:title="definition: DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract to DefinedBenefitPlanExpectedFutureBenefitPaymentsInYearFive" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter" xlink:label="DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter" xlink:title="DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract" xlink:to="DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter" xlink:title="definition: DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract to DefinedBenefitPlanExpectedFutureBenefitPaymentsInFiveFiscalYearsThereafter" use="optional" order="6.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails2">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancialInstrumentsDisclosureAbstract" xlink:label="FinancialInstrumentsDisclosureAbstract" xlink:title="FinancialInstrumentsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AvailableForSaleSecuritiesCurrent" xlink:label="AvailableForSaleSecuritiesCurrent" xlink:title="AvailableForSaleSecuritiesCurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="AvailableForSaleSecuritiesCurrent" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to AvailableForSaleSecuritiesCurrent" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_Investments" xlink:label="Investments" xlink:title="Investments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="Investments" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to Investments" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InvestmentsGainLossNet" xlink:label="InvestmentsGainLossNet" xlink:title="InvestmentsGainLossNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="InvestmentsGainLossNet" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to InvestmentsGainLossNet" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InvestmentsIncludedInLongTermFinancingReceivablesAndOtherAssets" xlink:label="InvestmentsIncludedInLongTermFinancingReceivablesAndOtherAssets" xlink:title="InvestmentsIncludedInLongTermFinancingReceivablesAndOtherAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="InvestmentsIncludedInLongTermFinancingReceivablesAndOtherAssets" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to InvestmentsIncludedInLongTermFinancingReceivablesAndOtherAssets" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentHoldingsLineItems" xlink:label="InvestmentHoldingsLineItems" xlink:title="InvestmentHoldingsLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentHoldingsTable" xlink:label="InvestmentHoldingsTable" xlink:title="InvestmentHoldingsTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="InvestmentHoldingsLineItems" xlink:to="InvestmentHoldingsTable" xlink:title="definition: InvestmentHoldingsLineItems to InvestmentHoldingsTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="InvestmentTypeAxis" xlink:title="InvestmentTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="InvestmentHoldingsTable" xlink:to="InvestmentTypeAxis" xlink:title="definition: InvestmentHoldingsTable to InvestmentTypeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentTypeDomain" xlink:label="InvestmentTypeDomain" xlink:title="InvestmentTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="InvestmentTypeAxis" xlink:to="InvestmentTypeDomain" xlink:title="definition: InvestmentTypeAxis to InvestmentTypeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InvestmentTypeDomain" xlink:label="InvestmentTypeDomain_2" xlink:title="InvestmentTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="InvestmentTypeAxis" xlink:to="InvestmentTypeDomain_2" xlink:title="definition: InvestmentTypeAxis to InvestmentTypeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="EquitySecuritiesMember" xlink:title="EquitySecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeDomain" xlink:to="EquitySecuritiesMember" xlink:title="definition: InvestmentTypeDomain to EquitySecuritiesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TimeDepositsDebtSecuritiesMember" xlink:label="TimeDepositsDebtSecuritiesMember" xlink:title="TimeDepositsDebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeDomain" xlink:to="TimeDepositsDebtSecuritiesMember" xlink:title="definition: InvestmentTypeDomain to TimeDepositsDebtSecuritiesMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EquitySecuritiesInPrivatelyHeldCompaniesMember" xlink:label="EquitySecuritiesInPrivatelyHeldCompaniesMember" xlink:title="EquitySecuritiesInPrivatelyHeldCompaniesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeDomain" xlink:to="EquitySecuritiesInPrivatelyHeldCompaniesMember" xlink:title="definition: InvestmentTypeDomain to EquitySecuritiesInPrivatelyHeldCompaniesMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherLongTermInvestmentsMember" xlink:label="OtherLongTermInvestmentsMember" xlink:title="OtherLongTermInvestmentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeDomain" xlink:to="OtherLongTermInvestmentsMember" xlink:title="definition: InvestmentTypeDomain to OtherLongTermInvestmentsMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LongTermInvestmentsMember" xlink:label="LongTermInvestmentsMember" xlink:title="LongTermInvestmentsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeDomain" xlink:to="LongTermInvestmentsMember" xlink:title="definition: InvestmentTypeDomain to LongTermInvestmentsMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AvailableForSaleDebtSecuritiesMember" xlink:label="AvailableForSaleDebtSecuritiesMember" xlink:title="AvailableForSaleDebtSecuritiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentTypeDomain" xlink:to="AvailableForSaleDebtSecuritiesMember" xlink:title="definition: InvestmentTypeDomain to AvailableForSaleDebtSecuritiesMember" use="optional" order="1.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="InvestmentHoldingsLineItems" xlink:to="FinancialInstrumentsDisclosureAbstract" xlink:title="definition: InvestmentHoldingsLineItems to FinancialInstrumentsDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails3">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancialInstrumentsDisclosureAbstract" xlink:label="FinancialInstrumentsDisclosureAbstract" xlink:title="FinancialInstrumentsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValueHedgesAtFairValueNetTotalAbstract" xlink:label="FairValueHedgesAtFairValueNetTotalAbstract" xlink:title="FairValueHedgesAtFairValueNetTotalAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="FairValueHedgesAtFairValueNetTotalAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to FairValueHedgesAtFairValueNetTotalAbstract" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NotionalAmountOfInterestRateFairValueHedgeDerivatives" xlink:label="NotionalAmountOfInterestRateFairValueHedgeDerivatives" xlink:title="NotionalAmountOfInterestRateFairValueHedgeDerivatives"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueHedgesAtFairValueNetTotalAbstract" xlink:to="NotionalAmountOfInterestRateFairValueHedgeDerivatives" xlink:title="definition: FairValueHedgesAtFairValueNetTotalAbstract to NotionalAmountOfInterestRateFairValueHedgeDerivatives" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestRateFairValueHedgeAssetAtFairValue" xlink:label="InterestRateFairValueHedgeAssetAtFairValue" xlink:title="InterestRateFairValueHedgeAssetAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueHedgesAtFairValueNetTotalAbstract" xlink:to="InterestRateFairValueHedgeAssetAtFairValue" xlink:title="definition: FairValueHedgesAtFairValueNetTotalAbstract to InterestRateFairValueHedgeAssetAtFairValue" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestRateFairValueHedgeLiabilityAtFairValue" xlink:label="InterestRateFairValueHedgeLiabilityAtFairValue" xlink:title="InterestRateFairValueHedgeLiabilityAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FairValueHedgesAtFairValueNetTotalAbstract" xlink:to="InterestRateFairValueHedgeLiabilityAtFairValue" xlink:title="definition: FairValueHedgesAtFairValueNetTotalAbstract to InterestRateFairValueHedgeLiabilityAtFairValue" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:label="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:title="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives" xlink:label="NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives" xlink:title="NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:to="NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives" xlink:title="definition: CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract to NotionalAmountOfForeignCurrencyCashFlowHedgeDerivatives" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignCurrencyCashFlowHedgeAssetAtFairValue" xlink:label="ForeignCurrencyCashFlowHedgeAssetAtFairValue" xlink:title="ForeignCurrencyCashFlowHedgeAssetAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:to="ForeignCurrencyCashFlowHedgeAssetAtFairValue" xlink:title="definition: CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract to ForeignCurrencyCashFlowHedgeAssetAtFairValue" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignCurrencyCashFlowHedgeLiabilityAtFairValue" xlink:label="ForeignCurrencyCashFlowHedgeLiabilityAtFairValue" xlink:title="ForeignCurrencyCashFlowHedgeLiabilityAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:to="ForeignCurrencyCashFlowHedgeLiabilityAtFairValue" xlink:title="definition: CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract to ForeignCurrencyCashFlowHedgeLiabilityAtFairValue" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeLowEndOfRange" xlink:label="LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeLowEndOfRange" xlink:title="LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeLowEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:to="LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeLowEndOfRange" xlink:title="definition: CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract to LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeLowEndOfRange" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeHighEndOfRange" xlink:label="LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeHighEndOfRange" xlink:title="LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeHighEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:to="LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeHighEndOfRange" xlink:title="definition: CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract to LengthOfTimeHedgedInForeignCurrencyCashFlowHedgeHighEndOfRange" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_MaximumLengthOfTimeHedgedInForeignCurrencyCashFlowHedgeOther" xlink:label="MaximumLengthOfTimeHedgedInForeignCurrencyCashFlowHedgeOther" xlink:title="MaximumLengthOfTimeHedgedInForeignCurrencyCashFlowHedgeOther"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:to="MaximumLengthOfTimeHedgedInForeignCurrencyCashFlowHedgeOther" xlink:title="definition: CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract to MaximumLengthOfTimeHedgedInForeignCurrencyCashFlowHedgeOther" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_MaximumLengthOfTimeHedgedInLeaseRelatedCashFlowHedges" xlink:label="MaximumLengthOfTimeHedgedInLeaseRelatedCashFlowHedges" xlink:title="MaximumLengthOfTimeHedgedInLeaseRelatedCashFlowHedges"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract" xlink:to="MaximumLengthOfTimeHedgedInLeaseRelatedCashFlowHedges" xlink:title="definition: CashFlowHedgesDerivativeInstrumentsAtFairValueNetAbstract to MaximumLengthOfTimeHedgedInLeaseRelatedCashFlowHedges" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:label="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:title="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NotionalAmountOfDerivativeInstrumentsDesignatedAsNetInvestmentHedges" xlink:label="NotionalAmountOfDerivativeInstrumentsDesignatedAsNetInvestmentHedges" xlink:title="NotionalAmountOfDerivativeInstrumentsDesignatedAsNetInvestmentHedges"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:to="NotionalAmountOfDerivativeInstrumentsDesignatedAsNetInvestmentHedges" xlink:title="definition: NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract to NotionalAmountOfDerivativeInstrumentsDesignatedAsNetInvestmentHedges" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetInvestmentHedgeDerivativeAssetsAtFairValue" xlink:label="NetInvestmentHedgeDerivativeAssetsAtFairValue" xlink:title="NetInvestmentHedgeDerivativeAssetsAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:to="NetInvestmentHedgeDerivativeAssetsAtFairValue" xlink:title="definition: NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract to NetInvestmentHedgeDerivativeAssetsAtFairValue" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NetInvestmentHedgeDerivativeLiabilitiesAtFairValue" xlink:label="NetInvestmentHedgeDerivativeLiabilitiesAtFairValue" xlink:title="NetInvestmentHedgeDerivativeLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:to="NetInvestmentHedgeDerivativeLiabilitiesAtFairValue" xlink:title="definition: NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract to NetInvestmentHedgeDerivativeLiabilitiesAtFairValue" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NotionalAmountOfDerivativesDesignatedAsHedgingInstruments" xlink:label="NotionalAmountOfDerivativesDesignatedAsHedgingInstruments" xlink:title="NotionalAmountOfDerivativesDesignatedAsHedgingInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:to="NotionalAmountOfDerivativesDesignatedAsHedgingInstruments" xlink:title="definition: NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract to NotionalAmountOfDerivativesDesignatedAsHedgingInstruments" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue" xlink:label="DerivativeInstrumentsInHedgesAssetsAtFairValue" xlink:title="DerivativeInstrumentsInHedgesAssetsAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:to="DerivativeInstrumentsInHedgesAssetsAtFairValue" xlink:title="definition: NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract to DerivativeInstrumentsInHedgesAssetsAtFairValue" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsInHedgesLiabilitiesAtFairValue" xlink:label="DerivativeInstrumentsInHedgesLiabilitiesAtFairValue" xlink:title="DerivativeInstrumentsInHedgesLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract" xlink:to="DerivativeInstrumentsInHedgesLiabilitiesAtFairValue" xlink:title="definition: NetInvestmentHedgeDerivativesAtFairValueNetTotalAbstract to DerivativeInstrumentsInHedgesLiabilitiesAtFairValue" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:label="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:title="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xlink:label="NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xlink:title="NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to NotionalAmountOfForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:label="ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:title="ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:label="ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:title="ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xlink:label="NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xlink:title="NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to NotionalAmountOfInterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstruments" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:label="InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:title="InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:label="InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:title="InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to InterestRateDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NotionalAmountOfOtherDerivativesInstrumentsNotDesignatedAsHedgingInstruments" xlink:label="NotionalAmountOfOtherDerivativesInstrumentsNotDesignatedAsHedgingInstruments" xlink:title="NotionalAmountOfOtherDerivativesInstrumentsNotDesignatedAsHedgingInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="NotionalAmountOfOtherDerivativesInstrumentsNotDesignatedAsHedgingInstruments" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to NotionalAmountOfOtherDerivativesInstrumentsNotDesignatedAsHedgingInstruments" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments" xlink:label="NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments" xlink:title="NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherDerivativesNotDesignatedAsHedgingInstrumentsAssetsAtFairValue" xlink:label="OtherDerivativesNotDesignatedAsHedgingInstrumentsAssetsAtFairValue" xlink:title="OtherDerivativesNotDesignatedAsHedgingInstrumentsAssetsAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="OtherDerivativesNotDesignatedAsHedgingInstrumentsAssetsAtFairValue" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to OtherDerivativesNotDesignatedAsHedgingInstrumentsAssetsAtFairValue" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:label="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:title="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:label="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:title="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsLiabilityAtFairValue" use="optional" order="12.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_NotionalAmountOfDerivatives" xlink:label="NotionalAmountOfDerivatives" xlink:title="NotionalAmountOfDerivatives"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="NotionalAmountOfDerivatives" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to NotionalAmountOfDerivatives" use="optional" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeAssets" xlink:label="DerivativeAssets" xlink:title="DerivativeAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="DerivativeAssets" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to DerivativeAssets" use="optional" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="DerivativeLiabilities" xlink:title="DerivativeLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="DerivativeLiabilities" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to DerivativeLiabilities" use="optional" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NotionalAmountOfTotalReturnContractDerivativeInstrumentsAndOtherInstrumentsNotDesignatedAsHedgingInstruments" xlink:label="NotionalAmountOfTotalReturnContractDerivativeInstrumentsAndOtherInstrumentsNotDesignatedAsHedgingInstruments" xlink:title="NotionalAmountOfTotalReturnContractDerivativeInstrumentsAndOtherInstrumentsNotDesignatedAsHedgingInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="NotionalAmountOfTotalReturnContractDerivativeInstrumentsAndOtherInstrumentsNotDesignatedAsHedgingInstruments" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to NotionalAmountOfTotalReturnContractDerivativeInstrumentsAndOtherInstrumentsNotDesignatedAsHedgingInstruments" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherDerivativesNotDesignatedAsHedgingInstrumentsLiabilitiesAtFairValue" xlink:label="OtherDerivativesNotDesignatedAsHedgingInstrumentsLiabilitiesAtFairValue" xlink:title="OtherDerivativesNotDesignatedAsHedgingInstrumentsLiabilitiesAtFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="OtherDerivativesNotDesignatedAsHedgingInstrumentsLiabilitiesAtFairValue" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract to OtherDerivativesNotDesignatedAsHedgingInstrumentsLiabilitiesAtFairValue" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativesFairValueLineItems" xlink:label="DerivativesFairValueLineItems" xlink:title="DerivativesFairValueLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:label="FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:title="FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DerivativesFairValueLineItems" xlink:to="FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:title="definition: DerivativesFairValueLineItems to FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativesFairValueByBalanceSheetLocationAxis" xlink:label="DerivativesFairValueByBalanceSheetLocationAxis" xlink:title="DerivativesFairValueByBalanceSheetLocationAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:to="DerivativesFairValueByBalanceSheetLocationAxis" xlink:title="definition: FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable to DerivativesFairValueByBalanceSheetLocationAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="BalanceSheetLocationDomain" xlink:title="BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DerivativesFairValueByBalanceSheetLocationAxis" xlink:to="BalanceSheetLocationDomain" xlink:title="definition: DerivativesFairValueByBalanceSheetLocationAxis to BalanceSheetLocationDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="BalanceSheetLocationDomain_2" xlink:title="BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="DerivativesFairValueByBalanceSheetLocationAxis" xlink:to="BalanceSheetLocationDomain_2" xlink:title="definition: DerivativesFairValueByBalanceSheetLocationAxis to BalanceSheetLocationDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherCurrentAssetsMember" xlink:label="OtherCurrentAssetsMember" xlink:title="OtherCurrentAssetsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetLocationDomain" xlink:to="OtherCurrentAssetsMember" xlink:title="definition: BalanceSheetLocationDomain to OtherCurrentAssetsMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_LongTermFinancingReceivablesAndOtherAssetsMember" xlink:label="LongTermFinancingReceivablesAndOtherAssetsMember" xlink:title="LongTermFinancingReceivablesAndOtherAssetsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetLocationDomain" xlink:to="LongTermFinancingReceivablesAndOtherAssetsMember" xlink:title="definition: BalanceSheetLocationDomain to LongTermFinancingReceivablesAndOtherAssetsMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_OtherAccruedLiabilitiesMember" xlink:label="OtherAccruedLiabilitiesMember" xlink:title="OtherAccruedLiabilitiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetLocationDomain" xlink:to="OtherAccruedLiabilitiesMember" xlink:title="definition: BalanceSheetLocationDomain to OtherAccruedLiabilitiesMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherLiabilitiesMember" xlink:label="OtherLiabilitiesMember" xlink:title="OtherLiabilitiesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BalanceSheetLocationDomain" xlink:to="OtherLiabilitiesMember" xlink:title="definition: BalanceSheetLocationDomain to OtherLiabilitiesMember" use="optional" order="4.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativesFairValueLineItems" xlink:to="FinancialInstrumentsDisclosureAbstract" xlink:title="definition: DerivativesFairValueLineItems to FinancialInstrumentsDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureFinancialInstrumentsDetails4">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancialInstrumentsDisclosureAbstract" xlink:label="FinancialInstrumentsDisclosureAbstract" xlink:title="FinancialInstrumentsDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EffectOfFairValueHedgesOnResultsOfOperationsAbstract" xlink:label="EffectOfFairValueHedgesOnResultsOfOperationsAbstract" xlink:title="EffectOfFairValueHedgesOnResultsOfOperationsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="EffectOfFairValueHedgesOnResultsOfOperationsAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to EffectOfFairValueHedgesOnResultsOfOperationsAbstract" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments" xlink:label="IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments" xlink:title="IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EffectOfFairValueHedgesOnResultsOfOperationsAbstract" xlink:to="IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments" xlink:title="definition: EffectOfFairValueHedgesOnResultsOfOperationsAbstract to IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncreaseDecreaseInFairValueOfHedgedItemInInterestRateFairValueHedge" xlink:label="IncreaseDecreaseInFairValueOfHedgedItemInInterestRateFairValueHedge" xlink:title="IncreaseDecreaseInFairValueOfHedgedItemInInterestRateFairValueHedge"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EffectOfFairValueHedgesOnResultsOfOperationsAbstract" xlink:to="IncreaseDecreaseInFairValueOfHedgedItemInInterestRateFairValueHedge" xlink:title="definition: EffectOfFairValueHedgesOnResultsOfOperationsAbstract to IncreaseDecreaseInFairValueOfHedgedItemInInterestRateFairValueHedge" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EffectOfCashFlowHedgesOnResultsOfOperationsAbstract" xlink:label="EffectOfCashFlowHedgesOnResultsOfOperationsAbstract" xlink:title="EffectOfCashFlowHedgesOnResultsOfOperationsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="EffectOfCashFlowHedgesOnResultsOfOperationsAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to EffectOfCashFlowHedgesOnResultsOfOperationsAbstract" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet" xlink:label="DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet" xlink:title="DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EffectOfCashFlowHedgesOnResultsOfOperationsAbstract" xlink:to="DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet" xlink:title="definition: EffectOfCashFlowHedgesOnResultsOfOperationsAbstract to DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashFlowHedgeGainLossReclassifiedToEarningsNet" xlink:label="CashFlowHedgeGainLossReclassifiedToEarningsNet" xlink:title="CashFlowHedgeGainLossReclassifiedToEarningsNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EffectOfCashFlowHedgesOnResultsOfOperationsAbstract" xlink:to="CashFlowHedgeGainLossReclassifiedToEarningsNet" xlink:title="definition: EffectOfCashFlowHedgesOnResultsOfOperationsAbstract to CashFlowHedgeGainLossReclassifiedToEarningsNet" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet" xlink:label="DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet" xlink:title="DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EffectOfCashFlowHedgesOnResultsOfOperationsAbstract" xlink:to="DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet" xlink:title="definition: EffectOfCashFlowHedgesOnResultsOfOperationsAbstract to DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths" xlink:label="CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths" xlink:title="CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EffectOfCashFlowHedgesOnResultsOfOperationsAbstract" xlink:to="CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths" xlink:title="definition: EffectOfCashFlowHedgesOnResultsOfOperationsAbstract to CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract" xlink:label="EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract" xlink:title="EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_GainLossOnDerivativeUsedInNetInvestmentHedgeBeforeTax" xlink:label="GainLossOnDerivativeUsedInNetInvestmentHedgeBeforeTax" xlink:title="GainLossOnDerivativeUsedInNetInvestmentHedgeBeforeTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract" xlink:to="GainLossOnDerivativeUsedInNetInvestmentHedgeBeforeTax" xlink:title="definition: EffectOfNetInvestmentHedgeOnResultsOfOperationsAbstract to GainLossOnDerivativeUsedInNetInvestmentHedgeBeforeTax" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract" xlink:label="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract" xlink:title="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:label="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:title="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract" xlink:to="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:title="definition: DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract to DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtFairValueAndCarryingValueAbstract" xlink:label="DebtFairValueAndCarryingValueAbstract" xlink:title="DebtFairValueAndCarryingValueAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancialInstrumentsDisclosureAbstract" xlink:to="DebtFairValueAndCarryingValueAbstract" xlink:title="definition: FinancialInstrumentsDisclosureAbstract to DebtFairValueAndCarryingValueAbstract" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DebtAndCapitalLeaseObligationsFairValue" xlink:label="DebtAndCapitalLeaseObligationsFairValue" xlink:title="DebtAndCapitalLeaseObligationsFairValue"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtFairValueAndCarryingValueAbstract" xlink:to="DebtAndCapitalLeaseObligationsFairValue" xlink:title="definition: DebtFairValueAndCarryingValueAbstract to DebtAndCapitalLeaseObligationsFairValue" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations" xlink:label="DebtAndCapitalLeaseObligations" xlink:title="DebtAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DebtFairValueAndCarryingValueAbstract" xlink:to="DebtAndCapitalLeaseObligations" xlink:title="definition: DebtFairValueAndCarryingValueAbstract to DebtAndCapitalLeaseObligations" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems" xlink:label="DerivativeInstrumentsGainLossLineItems" xlink:title="DerivativeInstrumentsGainLossLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:label="DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:title="DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DerivativeInstrumentsGainLossLineItems" xlink:to="DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:title="definition: DerivativeInstrumentsGainLossLineItems to DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis" xlink:label="DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis" xlink:title="DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:to="DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis" xlink:title="definition: DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable to DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="DerivativeContractTypeDomain" xlink:title="DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis" xlink:to="DerivativeContractTypeDomain" xlink:title="definition: DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis to DerivativeContractTypeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="DerivativeContractTypeDomain_2" xlink:title="DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis" xlink:to="DerivativeContractTypeDomain_2" xlink:title="definition: DerivativeInstrumentsGainLossByDerivativeInstrumentRiskAxis to DerivativeContractTypeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_InterestRateContractMember" xlink:label="InterestRateContractMember" xlink:title="InterestRateContractMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeContractTypeDomain" xlink:to="InterestRateContractMember" xlink:title="definition: DerivativeContractTypeDomain to InterestRateContractMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignExchangeContractMember" xlink:label="ForeignExchangeContractMember" xlink:title="ForeignExchangeContractMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeContractTypeDomain" xlink:to="ForeignExchangeContractMember" xlink:title="definition: DerivativeContractTypeDomain to ForeignExchangeContractMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ForeignExchangeContractJointVentureMember" xlink:label="ForeignExchangeContractJointVentureMember" xlink:title="ForeignExchangeContractJointVentureMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeContractTypeDomain" xlink:to="ForeignExchangeContractJointVentureMember" xlink:title="definition: DerivativeContractTypeDomain to ForeignExchangeContractJointVentureMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EquityContractAndOtherContractsMember" xlink:label="EquityContractAndOtherContractsMember" xlink:title="EquityContractAndOtherContractsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeContractTypeDomain" xlink:to="EquityContractAndOtherContractsMember" xlink:title="definition: DerivativeContractTypeDomain to EquityContractAndOtherContractsMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByIncomeStatementLocationAxis" xlink:label="DerivativeInstrumentsGainLossByIncomeStatementLocationAxis" xlink:title="DerivativeInstrumentsGainLossByIncomeStatementLocationAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:to="DerivativeInstrumentsGainLossByIncomeStatementLocationAxis" xlink:title="definition: DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable to DerivativeInstrumentsGainLossByIncomeStatementLocationAxis" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeStatementAndOtherComprehensiveIncomeLocationDomain" xlink:label="IncomeStatementAndOtherComprehensiveIncomeLocationDomain" xlink:title="IncomeStatementAndOtherComprehensiveIncomeLocationDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DerivativeInstrumentsGainLossByIncomeStatementLocationAxis" xlink:to="IncomeStatementAndOtherComprehensiveIncomeLocationDomain" xlink:title="definition: DerivativeInstrumentsGainLossByIncomeStatementLocationAxis to IncomeStatementAndOtherComprehensiveIncomeLocationDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncomeStatementAndOtherComprehensiveIncomeLocationDomain" xlink:label="IncomeStatementAndOtherComprehensiveIncomeLocationDomain_2" xlink:title="IncomeStatementAndOtherComprehensiveIncomeLocationDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="DerivativeInstrumentsGainLossByIncomeStatementLocationAxis" xlink:to="IncomeStatementAndOtherComprehensiveIncomeLocationDomain_2" xlink:title="definition: DerivativeInstrumentsGainLossByIncomeStatementLocationAxis to IncomeStatementAndOtherComprehensiveIncomeLocationDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SalesMember" xlink:label="SalesMember" xlink:title="SalesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAndOtherComprehensiveIncomeLocationDomain" xlink:to="SalesMember" xlink:title="definition: IncomeStatementAndOtherComprehensiveIncomeLocationDomain to SalesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_CostOfSalesMember" xlink:label="CostOfSalesMember" xlink:title="CostOfSalesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAndOtherComprehensiveIncomeLocationDomain" xlink:to="CostOfSalesMember" xlink:title="definition: IncomeStatementAndOtherComprehensiveIncomeLocationDomain to CostOfSalesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherOperatingExpenseMember" xlink:label="OtherOperatingExpenseMember" xlink:title="OtherOperatingExpenseMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAndOtherComprehensiveIncomeLocationDomain" xlink:to="OtherOperatingExpenseMember" xlink:title="definition: IncomeStatementAndOtherComprehensiveIncomeLocationDomain to OtherOperatingExpenseMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_InterestAndOtherMember" xlink:label="InterestAndOtherMember" xlink:title="InterestAndOtherMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IncomeStatementAndOtherComprehensiveIncomeLocationDomain" xlink:to="InterestAndOtherMember" xlink:title="definition: IncomeStatementAndOtherComprehensiveIncomeLocationDomain to InterestAndOtherMember" use="optional" order="4.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DerivativeInstrumentsGainLossLineItems" xlink:to="FinancialInstrumentsDisclosureAbstract" xlink:title="definition: DerivativeInstrumentsGainLossLineItems to FinancialInstrumentsDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails2">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="DefinedBenefitPlanDisclosureLineItems" xlink:title="DefinedBenefitPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to ScheduleOfDefinedBenefitPlansDisclosuresTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:title="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="DefinedBenefitPlansDomain" xlink:title="DefinedBenefitPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:to="DefinedBenefitPlansDomain" xlink:title="definition: DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis to DefinedBenefitPlansDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="DefinedBenefitPlansDomain_2" xlink:title="DefinedBenefitPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:to="DefinedBenefitPlansDomain_2" xlink:title="definition: DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis to DefinedBenefitPlansDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="PensionPlansDefinedBenefitMember" xlink:title="PensionPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDomain" xlink:to="PensionPlansDefinedBenefitMember" xlink:title="definition: DefinedBenefitPlansDomain to PensionPlansDefinedBenefitMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:label="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:title="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:title="definition: PensionPlansDefinedBenefitMember to UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignPensionPlansDefinedBenefitMember" xlink:label="ForeignPensionPlansDefinedBenefitMember" xlink:title="ForeignPensionPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="ForeignPensionPlansDefinedBenefitMember" xlink:title="definition: PensionPlansDefinedBenefitMember to ForeignPensionPlansDefinedBenefitMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember" xlink:label="UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember" xlink:title="UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember" xlink:title="definition: PensionPlansDefinedBenefitMember to UnitedStatesPensionPlansOfUSEntityNonqualifiedPlanParticipantsMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:title="OtherPostretirementBenefitPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDomain" xlink:to="OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:title="definition: DefinedBenefitPlansDomain to OtherPostretirementBenefitPlansDefinedBenefitMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlansDisclosuresPlansAxis" xlink:label="DefinedBenefitPlansDisclosuresPlansAxis" xlink:title="DefinedBenefitPlansDisclosuresPlansAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlansDisclosuresPlansAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlansDisclosuresPlansAxis" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlansDisclosuresPlansDomain" xlink:label="DefinedBenefitPlansDisclosuresPlansDomain" xlink:title="DefinedBenefitPlansDisclosuresPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlansDisclosuresPlansAxis" xlink:to="DefinedBenefitPlansDisclosuresPlansDomain" xlink:title="definition: DefinedBenefitPlansDisclosuresPlansAxis to DefinedBenefitPlansDisclosuresPlansDomain" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlansDisclosuresPlansDomain" xlink:label="DefinedBenefitPlansDisclosuresPlansDomain_2" xlink:title="DefinedBenefitPlansDisclosuresPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="DefinedBenefitPlansDisclosuresPlansAxis" xlink:to="DefinedBenefitPlansDisclosuresPlansDomain_2" xlink:title="definition: DefinedBenefitPlansDisclosuresPlansAxis to DefinedBenefitPlansDisclosuresPlansDomain" use="optional" priority="1" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AcquiredEntityDefinedBenefitPlanMember" xlink:label="AcquiredEntityDefinedBenefitPlanMember" xlink:title="AcquiredEntityDefinedBenefitPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDisclosuresPlansDomain" xlink:to="AcquiredEntityDefinedBenefitPlanMember" xlink:title="definition: DefinedBenefitPlansDisclosuresPlansDomain to AcquiredEntityDefinedBenefitPlanMember" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DeferredProfitSharingPlanMember" xlink:label="DeferredProfitSharingPlanMember" xlink:title="DeferredProfitSharingPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDisclosuresPlansDomain" xlink:to="DeferredProfitSharingPlanMember" xlink:title="definition: DefinedBenefitPlansDisclosuresPlansDomain to DeferredProfitSharingPlanMember" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:label="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="RetirementAndPostRetirementBenefitPlansDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to RetirementAndPostRetirementBenefitPlansDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:label="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:title="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" use="optional" order="8005.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:label="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:title="DefinedBenefitPlanNetPeriodicBenefitCostAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanNetPeriodicBenefitCostAbstract" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="DefinedBenefitPlanServiceCost" xlink:title="DefinedBenefitPlanServiceCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanServiceCost" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanServiceCost" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="DefinedBenefitPlanInterestCost" xlink:title="DefinedBenefitPlanInterestCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanInterestCost" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanInterestCost" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:title="DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanExpectedReturnOnPlanAssets" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAmortizationAndDeferralsAbstract" xlink:label="DefinedBenefitPlanAmortizationAndDeferralsAbstract" xlink:title="DefinedBenefitPlanAmortizationAndDeferralsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanAmortizationAndDeferralsAbstract" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanAmortizationAndDeferralsAbstract" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="DefinedBenefitPlanAmortizationOfGainsLosses" xlink:title="DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAmortizationAndDeferralsAbstract" xlink:to="DefinedBenefitPlanAmortizationOfGainsLosses" xlink:title="definition: DefinedBenefitPlanAmortizationAndDeferralsAbstract to DefinedBenefitPlanAmortizationOfGainsLosses" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:title="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAmortizationAndDeferralsAbstract" xlink:to="DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:title="definition: DefinedBenefitPlanAmortizationAndDeferralsAbstract to DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanNetPeriodicBenefitCostBeforeSettlementsAndCurtailments" xlink:label="DefinedBenefitPlanNetPeriodicBenefitCostBeforeSettlementsAndCurtailments" xlink:title="DefinedBenefitPlanNetPeriodicBenefitCostBeforeSettlementsAndCurtailments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanNetPeriodicBenefitCostBeforeSettlementsAndCurtailments" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanNetPeriodicBenefitCostBeforeSettlementsAndCurtailments" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanSpecialTerminationBenefits" xlink:label="DefinedBenefitPlanSpecialTerminationBenefits" xlink:title="DefinedBenefitPlanSpecialTerminationBenefits"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanSpecialTerminationBenefits" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanSpecialTerminationBenefits" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:title="DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanNetPeriodicBenefitCost" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanNetPeriodicBenefitCost" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments" xlink:label="DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments" xlink:title="DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements" xlink:label="DefinedBenefitPlanRecognizedNetGainLossDueToSettlements" xlink:title="DefinedBenefitPlanRecognizedNetGainLossDueToSettlements"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanRecognizedNetGainLossDueToSettlements" xlink:title="definition: DefinedBenefitPlanNetPeriodicBenefitCostAbstract to DefinedBenefitPlanRecognizedNetGainLossDueToSettlements" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:label="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:title="PensionAndOtherPostretirementBenefitContributionsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to PensionAndOtherPostretirementBenefitContributionsAbstract" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" xlink:label="DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" xlink:title="DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:to="DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" xlink:title="definition: PensionAndOtherPostretirementBenefitContributionsAbstract to DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYear" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:label="DefinedBenefitPlanContributionsByEmployer" xlink:title="DefinedBenefitPlanContributionsByEmployer"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:to="DefinedBenefitPlanContributionsByEmployer" xlink:title="definition: PensionAndOtherPostretirementBenefitContributionsAbstract to DefinedBenefitPlanContributionsByEmployer" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanEmployerContributionsDuringPeriodUSNonQualifiedPlanParticipants" xlink:label="DefinedBenefitPlanEmployerContributionsDuringPeriodUSNonQualifiedPlanParticipants" xlink:title="DefinedBenefitPlanEmployerContributionsDuringPeriodUSNonQualifiedPlanParticipants"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:to="DefinedBenefitPlanEmployerContributionsDuringPeriodUSNonQualifiedPlanParticipants" xlink:title="definition: PensionAndOtherPostretirementBenefitContributionsAbstract to DefinedBenefitPlanEmployerContributionsDuringPeriodUSNonQualifiedPlanParticipants" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUSNonQualifiedPlanParticipants" xlink:label="DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUSNonQualifiedPlanParticipants" xlink:title="DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUSNonQualifiedPlanParticipants"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:to="DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUSNonQualifiedPlanParticipants" xlink:title="definition: PensionAndOtherPostretirementBenefitContributionsAbstract to DefinedBenefitPlanEstimatedFutureEmployerContributionsInNextFiscalYearUSNonQualifiedPlanParticipants" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainingFiscalYearUSNonQualifiedPlanParticipants" xlink:label="DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainingFiscalYearUSNonQualifiedPlanParticipants" xlink:title="DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainingFiscalYearUSNonQualifiedPlanParticipants"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:to="DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainingFiscalYearUSNonQualifiedPlanParticipants" xlink:title="definition: PensionAndOtherPostretirementBenefitContributionsAbstract to DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainingFiscalYearUSNonQualifiedPlanParticipants" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear" xlink:label="DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear" xlink:title="DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:to="DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear" xlink:title="definition: PensionAndOtherPostretirementBenefitContributionsAbstract to DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAmendments" xlink:label="DefinedBenefitPlanAmendments" xlink:title="DefinedBenefitPlanAmendments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionAndOtherPostretirementBenefitContributionsAbstract" xlink:to="DefinedBenefitPlanAmendments" xlink:title="definition: PensionAndOtherPostretirementBenefitContributionsAbstract to DefinedBenefitPlanAmendments" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerContributionMatchingPercentEDSPlanUntilMarch2009" xlink:label="DefinedContributionPlanEmployerContributionMatchingPercentEDSPlanUntilMarch2009" xlink:title="DefinedContributionPlanEmployerContributionMatchingPercentEDSPlanUntilMarch2009"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerContributionMatchingPercentEDSPlanUntilMarch2009" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerContributionMatchingPercentEDSPlanUntilMarch2009" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanFairValueOfPlanAssetsUSPortion" xlink:label="DefinedBenefitPlanFairValueOfPlanAssetsUSPortion" xlink:title="DefinedBenefitPlanFairValueOfPlanAssetsUSPortion"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanFairValueOfPlanAssetsUSPortion" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanFairValueOfPlanAssetsUSPortion" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanBenefitObligationUSPortion" xlink:label="DefinedBenefitPlanBenefitObligationUSPortion" xlink:title="DefinedBenefitPlanBenefitObligationUSPortion"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanBenefitObligationUSPortion" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanBenefitObligationUSPortion" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPensionPlanVestingPeriodLowEndOfRange" xlink:label="DefinedBenefitPensionPlanVestingPeriodLowEndOfRange" xlink:title="DefinedBenefitPensionPlanVestingPeriodLowEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPensionPlanVestingPeriodLowEndOfRange" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPensionPlanVestingPeriodLowEndOfRange" use="optional" order="8003.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPensionPlanVestingPeriodHighEndOfRange" xlink:label="DefinedBenefitPensionPlanVestingPeriodHighEndOfRange" xlink:title="DefinedBenefitPensionPlanVestingPeriodHighEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPensionPlanVestingPeriodHighEndOfRange" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPensionPlanVestingPeriodHighEndOfRange" use="optional" order="8004.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAndDefinedContributionPlanBenefitObligation" xlink:label="DefinedBenefitPlanAndDefinedContributionPlanBenefitObligation" xlink:title="DefinedBenefitPlanAndDefinedContributionPlanBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAndDefinedContributionPlanBenefitObligation" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAndDefinedContributionPlanBenefitObligation" use="optional" order="8006.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EligibilityCriteriaForSubsidizedPre2003ProgramAsCombinationOfAgeAndYearsOfService" xlink:label="EligibilityCriteriaForSubsidizedPre2003ProgramAsCombinationOfAgeAndYearsOfService" xlink:title="EligibilityCriteriaForSubsidizedPre2003ProgramAsCombinationOfAgeAndYearsOfService"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="EligibilityCriteriaForSubsidizedPre2003ProgramAsCombinationOfAgeAndYearsOfService" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to EligibilityCriteriaForSubsidizedPre2003ProgramAsCombinationOfAgeAndYearsOfService" use="optional" order="8007.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EligibleAgeForHPRetirementMedicalSavingsAccountPlan" xlink:label="EligibleAgeForHPRetirementMedicalSavingsAccountPlan" xlink:title="EligibleAgeForHPRetirementMedicalSavingsAccountPlan"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="EligibleAgeForHPRetirementMedicalSavingsAccountPlan" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to EligibleAgeForHPRetirementMedicalSavingsAccountPlan" use="optional" order="8008.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EligibilityPeriodForRetireeMedicalProgram" xlink:label="EligibilityPeriodForRetireeMedicalProgram" xlink:title="EligibilityPeriodForRetireeMedicalProgram"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="EligibilityPeriodForRetireeMedicalProgram" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to EligibilityPeriodForRetireeMedicalProgram" use="optional" order="8009.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails3">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="DefinedBenefitPlanDisclosureLineItems" xlink:title="DefinedBenefitPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to ScheduleOfDefinedBenefitPlansDisclosuresTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:title="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="DefinedBenefitPlansDomain" xlink:title="DefinedBenefitPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:to="DefinedBenefitPlansDomain" xlink:title="definition: DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis to DefinedBenefitPlansDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="PensionPlansDefinedBenefitMember" xlink:title="PensionPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDomain" xlink:to="PensionPlansDefinedBenefitMember" xlink:title="definition: DefinedBenefitPlansDomain to PensionPlansDefinedBenefitMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:label="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:title="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" xlink:title="definition: PensionPlansDefinedBenefitMember to UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ForeignPensionPlansDefinedBenefitMember" xlink:label="ForeignPensionPlansDefinedBenefitMember" xlink:title="ForeignPensionPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PensionPlansDefinedBenefitMember" xlink:to="ForeignPensionPlansDefinedBenefitMember" xlink:title="definition: PensionPlansDefinedBenefitMember to ForeignPensionPlansDefinedBenefitMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:title="OtherPostretirementBenefitPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlansDomain" xlink:to="OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:title="definition: DefinedBenefitPlansDomain to OtherPostretirementBenefitPlansDefinedBenefitMember" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:label="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="RetirementAndPostRetirementBenefitPlansDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to RetirementAndPostRetirementBenefitPlansDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:label="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:title="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets" xlink:label="DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets" xlink:title="DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets" xlink:title="definition: DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward to DefinedBenefitPlanBusinessCombinationsAndAcquisitionsPlanAssets" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets" xlink:label="DefinedBenefitPlanActualReturnOnPlanAssets" xlink:title="DefinedBenefitPlanActualReturnOnPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="DefinedBenefitPlanActualReturnOnPlanAssets" xlink:title="definition: DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward to DefinedBenefitPlanActualReturnOnPlanAssets" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanSettlementsPlanAssets" xlink:label="DefinedBenefitPlanSettlementsPlanAssets" xlink:title="DefinedBenefitPlanSettlementsPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="DefinedBenefitPlanSettlementsPlanAssets" xlink:title="definition: DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward to DefinedBenefitPlanSettlementsPlanAssets" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets" xlink:label="DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets" xlink:title="DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets" xlink:title="definition: DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward to DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanChangeInFairValueOfPlanAssetsBenefitsPaid" xlink:label="DefinedBenefitPlanChangeInFairValueOfPlanAssetsBenefitsPaid" xlink:title="DefinedBenefitPlanChangeInFairValueOfPlanAssetsBenefitsPaid"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="DefinedBenefitPlanChangeInFairValueOfPlanAssetsBenefitsPaid" xlink:title="definition: DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward to DefinedBenefitPlanChangeInFairValueOfPlanAssetsBenefitsPaid" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanChangeInFairValueOfPlanAssetsContributionsByPlanParticipants" xlink:label="DefinedBenefitPlanChangeInFairValueOfPlanAssetsContributionsByPlanParticipants" xlink:title="DefinedBenefitPlanChangeInFairValueOfPlanAssetsContributionsByPlanParticipants"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="DefinedBenefitPlanChangeInFairValueOfPlanAssetsContributionsByPlanParticipants" xlink:title="definition: DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward to DefinedBenefitPlanChangeInFairValueOfPlanAssetsContributionsByPlanParticipants" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:label="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:title="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" xlink:title="definition: DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward to DefinedBenefitPlanAndDefinedContributionPlanFairValueOfPlanAssets" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:label="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:title="DefinedBenefitPlanChangeInBenefitObligationRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanChangeInBenefitObligationRollForward" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligation" xlink:label="DefinedBenefitPlanBenefitObligation" xlink:title="DefinedBenefitPlanBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanBenefitObligation" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanBenefitObligation" use="optional" priority="1" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation" xlink:label="DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation" xlink:title="DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanBusinessCombinationsAndAcquisitionsBenefitObligation" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanActuarialNetGainsLosses" xlink:label="DefinedBenefitPlanActuarialNetGainsLosses" xlink:title="DefinedBenefitPlanActuarialNetGainsLosses"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanActuarialNetGainsLosses" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanActuarialNetGainsLosses" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanCurtailments" xlink:label="DefinedBenefitPlanCurtailments" xlink:title="DefinedBenefitPlanCurtailments"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanCurtailments" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanCurtailments" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation" xlink:label="DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation" xlink:title="DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation" use="optional" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_IncrementalEffectOnBalanceSheetLiabilityOrEquityLineItemBalanceApplicationOfSFAS158RecognitionProvisions" xlink:label="IncrementalEffectOnBalanceSheetLiabilityOrEquityLineItemBalanceApplicationOfSFAS158RecognitionProvisions" xlink:title="IncrementalEffectOnBalanceSheetLiabilityOrEquityLineItemBalanceApplicationOfSFAS158RecognitionProvisions"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="IncrementalEffectOnBalanceSheetLiabilityOrEquityLineItemBalanceApplicationOfSFAS158RecognitionProvisions" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to IncrementalEffectOnBalanceSheetLiabilityOrEquityLineItemBalanceApplicationOfSFAS158RecognitionProvisions" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanChangeInBenefitObligationServiceCost" xlink:label="DefinedBenefitPlanChangeInBenefitObligationServiceCost" xlink:title="DefinedBenefitPlanChangeInBenefitObligationServiceCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanChangeInBenefitObligationServiceCost" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanChangeInBenefitObligationServiceCost" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanChangeInBenefitObligationInterestCost" xlink:label="DefinedBenefitPlanChangeInBenefitObligationInterestCost" xlink:title="DefinedBenefitPlanChangeInBenefitObligationInterestCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanChangeInBenefitObligationInterestCost" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanChangeInBenefitObligationInterestCost" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitsPaid" xlink:label="DefinedBenefitPlanBenefitsPaid" xlink:title="DefinedBenefitPlanBenefitsPaid"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanBenefitsPaid" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanBenefitsPaid" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanContributionsByPlanParticipants" xlink:label="DefinedBenefitPlanContributionsByPlanParticipants" xlink:title="DefinedBenefitPlanContributionsByPlanParticipants"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="DefinedBenefitPlanContributionsByPlanParticipants" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to DefinedBenefitPlanContributionsByPlanParticipants" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SpecialTerminationBenefitsDefinedBenefitPlan" xlink:label="SpecialTerminationBenefitsDefinedBenefitPlan" xlink:title="SpecialTerminationBenefitsDefinedBenefitPlan"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanChangeInBenefitObligationRollForward" xlink:to="SpecialTerminationBenefitsDefinedBenefitPlan" xlink:title="definition: DefinedBenefitPlanChangeInBenefitObligationRollForward to SpecialTerminationBenefitsDefinedBenefitPlan" use="optional" order="13.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xlink:label="DefinedBenefitPlanFundedStatusOfPlan" xlink:title="DefinedBenefitPlanFundedStatusOfPlan"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanFundedStatusOfPlan" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanFundedStatusOfPlan" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanContributionsAfterMeasurementDate" xlink:label="DefinedBenefitPlanContributionsAfterMeasurementDate" xlink:title="DefinedBenefitPlanContributionsAfterMeasurementDate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanContributionsAfterMeasurementDate" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanContributionsAfterMeasurementDate" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet" xlink:label="DefinedBenefitPlanAmountsRecognizedInBalanceSheet" xlink:title="DefinedBenefitPlanAmountsRecognizedInBalanceSheet"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAmountsRecognizedInBalanceSheet" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAmountsRecognizedInBalanceSheet" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation" xlink:label="DefinedBenefitPlanAccumulatedBenefitObligation" xlink:title="DefinedBenefitPlanAccumulatedBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAccumulatedBenefitObligation" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAccumulatedBenefitObligation" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract" xlink:label="DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract" xlink:title="DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract" use="optional" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent" xlink:label="DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent" xlink:title="DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract" xlink:to="DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent" xlink:title="definition: DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract to DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities" xlink:label="PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities" xlink:title="PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract" xlink:to="PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities" xlink:title="definition: DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract to PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:title="PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract" xlink:to="PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:title="definition: DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract to PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract" xlink:label="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract" xlink:title="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract" use="optional" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" xlink:label="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" xlink:title="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract" xlink:to="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" xlink:title="definition: DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract to DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" xlink:label="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" xlink:title="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract" xlink:to="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" xlink:title="definition: DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract to DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:label="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:title="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract" xlink:to="DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" xlink:title="definition: DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTaxAbstract to DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract" xlink:label="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract" xlink:title="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract" use="optional" order="10.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfNetGainsLosses" xlink:label="DefinedBenefitPlanAmortizationOfNetGainsLosses" xlink:title="DefinedBenefitPlanAmortizationOfNetGainsLosses"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract" xlink:to="DefinedBenefitPlanAmortizationOfNetGainsLosses" xlink:title="definition: DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract to DefinedBenefitPlanAmortizationOfNetGainsLosses" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfNetPriorServiceCostCredit" xlink:label="DefinedBenefitPlanAmortizationOfNetPriorServiceCostCredit" xlink:title="DefinedBenefitPlanAmortizationOfNetPriorServiceCostCredit"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract" xlink:to="DefinedBenefitPlanAmortizationOfNetPriorServiceCostCredit" xlink:title="definition: DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract to DefinedBenefitPlanAmortizationOfNetPriorServiceCostCredit" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" xlink:label="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" xlink:title="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract" xlink:to="DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" xlink:title="definition: DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYearAbstract to DefinedBenefitPlanAmountsThatWillBeAmortizedFromAccumulatedOtherComprehensiveIncomeLossInNextFiscalYear" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation" xlink:label="DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation" xlink:title="DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation" xlink:label="DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation" xlink:title="DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation" use="optional" order="8002.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:label="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:title="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract" use="optional" order="14.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation" xlink:label="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation" xlink:title="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:to="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation" xlink:title="definition: DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract to DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateBenefitObligation" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets" xlink:label="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets" xlink:title="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:to="DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets" xlink:title="definition: DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAbstract to DefinedBenefitPlanPlansWithBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:label="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:title="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract" use="optional" order="15.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets" xlink:label="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets" xlink:title="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:to="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets" xlink:title="definition: DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract to DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation" xlink:label="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation" xlink:title="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract" xlink:to="DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation" xlink:title="definition: DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract to DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:label="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:title="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:label="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:title="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract to DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease" xlink:label="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease" xlink:title="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract to DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:label="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:title="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract to DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear" xlink:label="DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear" xlink:title="DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract to DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanUltimateHealthCareCostTrendRate" xlink:label="DefinedBenefitPlanUltimateHealthCareCostTrendRate" xlink:title="DefinedBenefitPlanUltimateHealthCareCostTrendRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanUltimateHealthCareCostTrendRate" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract to DefinedBenefitPlanUltimateHealthCareCostTrendRate" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents" xlink:label="DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents" xlink:title="DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract to DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents" xlink:label="DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents" xlink:title="DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract" xlink:to="DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract to DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" xlink:label="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" xlink:title="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" use="optional" order="11.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" xlink:label="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" xlink:title="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" xlink:to="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract to DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease" xlink:label="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease" xlink:title="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" xlink:to="DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract to DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationCurrentHealthCareCostTrend" xlink:label="DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationCurrentHealthCareCostTrend" xlink:title="DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationCurrentHealthCareCostTrend"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" xlink:to="DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationCurrentHealthCareCostTrend" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract to DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationCurrentHealthCareCostTrend" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationUltimateHealthCareCostTrend" xlink:label="DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationUltimateHealthCareCostTrend" xlink:title="DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationUltimateHealthCareCostTrend"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" xlink:to="DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationUltimateHealthCareCostTrend" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract to DefinedBenefitPlanAssumptionUsedCalculatingBenefitObligationUltimateHealthCareCostTrend" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanYearThatRateReachesUltimateTrendRate" xlink:label="DefinedBenefitPlanYearThatRateReachesUltimateTrendRate" xlink:title="DefinedBenefitPlanYearThatRateReachesUltimateTrendRate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract" xlink:to="DefinedBenefitPlanYearThatRateReachesUltimateTrendRate" xlink:title="definition: DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract to DefinedBenefitPlanYearThatRateReachesUltimateTrendRate" use="optional" order="8002.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="DefinedBenefitPlanDisclosureLineItems" xlink:title="DefinedBenefitPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:label="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to ScheduleOfDefinedBenefitPlansDisclosuresTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlansDisclosuresAxis" xlink:label="DefinedContributionPlansDisclosuresAxis" xlink:title="DefinedContributionPlansDisclosuresAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="DefinedContributionPlansDisclosuresAxis" xlink:title="definition: ScheduleOfDefinedBenefitPlansDisclosuresTable to DefinedContributionPlansDisclosuresAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlansDomain" xlink:label="DefinedContributionPlansDomain" xlink:title="DefinedContributionPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedContributionPlansDisclosuresAxis" xlink:to="DefinedContributionPlansDomain" xlink:title="definition: DefinedContributionPlansDisclosuresAxis to DefinedContributionPlansDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HPDefinedContributionPlanMember" xlink:label="HPDefinedContributionPlanMember" xlink:title="HPDefinedContributionPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedContributionPlansDomain" xlink:to="HPDefinedContributionPlanMember" xlink:title="definition: DefinedContributionPlansDomain to HPDefinedContributionPlanMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EDSDefinedContributionPlanMember" xlink:label="EDSDefinedContributionPlanMember" xlink:title="EDSDefinedContributionPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedContributionPlansDomain" xlink:to="EDSDefinedContributionPlanMember" xlink:title="definition: DefinedContributionPlansDomain to EDSDefinedContributionPlanMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:label="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="RetirementAndPostRetirementBenefitPlansDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedBenefitPlanDisclosureLineItems" xlink:to="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="definition: DefinedBenefitPlanDisclosureLineItems to RetirementAndPostRetirementBenefitPlansDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009" xlink:label="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009" xlink:title="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleLowEndOfRange" xlink:label="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleLowEndOfRange" xlink:title="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleLowEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleLowEndOfRange" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleLowEndOfRange" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleHighEndOfRange" xlink:label="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleHighEndOfRange" xlink:title="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleHighEndOfRange"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleHighEndOfRange" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerMaximumPerformanceBasedMatchPercentApril2009MultipleHighEndOfRange" use="optional" order="8001.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerContributionMatchingPercentMultipleDuringPeriod" xlink:label="DefinedContributionPlanEmployerContributionMatchingPercentMultipleDuringPeriod" xlink:title="DefinedContributionPlanEmployerContributionMatchingPercentMultipleDuringPeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerContributionMatchingPercentMultipleDuringPeriod" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerContributionMatchingPercentMultipleDuringPeriod" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerEqualToMatchPercentDuringThePeriod" xlink:label="DefinedContributionPlanEmployerEqualToMatchPercentDuringThePeriod" xlink:title="DefinedContributionPlanEmployerEqualToMatchPercentDuringThePeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerEqualToMatchPercentDuringThePeriod" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerEqualToMatchPercentDuringThePeriod" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerMaximumMatchPercentDuringThePeriod" xlink:label="DefinedContributionPlanEmployerMaximumMatchPercentDuringThePeriod" xlink:title="DefinedContributionPlanEmployerMaximumMatchPercentDuringThePeriod"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerMaximumMatchPercentDuringThePeriod" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerMaximumMatchPercentDuringThePeriod" use="optional" order="4.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureRetirementAndPostRetirementBenefitPlansDetails6">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlansDisclosuresAxis" xlink:label="DefinedContributionPlansDisclosuresAxis" xlink:title="DefinedContributionPlansDisclosuresAxis"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlansDomain" xlink:label="DefinedContributionPlansDomain" xlink:title="DefinedContributionPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="DefinedContributionPlansDisclosuresAxis" xlink:to="DefinedContributionPlansDomain" xlink:title="definition: DefinedContributionPlansDisclosuresAxis to DefinedContributionPlansDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlansDomain" xlink:label="DefinedContributionPlansDomain_2" xlink:title="DefinedContributionPlansDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="DefinedContributionPlansDisclosuresAxis" xlink:to="DefinedContributionPlansDomain_2" xlink:title="definition: DefinedContributionPlansDisclosuresAxis to DefinedContributionPlansDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_HPDefinedContributionPlanMember" xlink:label="HPDefinedContributionPlanMember" xlink:title="HPDefinedContributionPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedContributionPlansDomain" xlink:to="HPDefinedContributionPlanMember" xlink:title="definition: DefinedContributionPlansDomain to HPDefinedContributionPlanMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_EDSDefinedContributionPlanMember" xlink:label="EDSDefinedContributionPlanMember" xlink:title="EDSDefinedContributionPlanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedContributionPlansDomain" xlink:to="EDSDefinedContributionPlanMember" xlink:title="definition: DefinedContributionPlansDomain to EDSDefinedContributionPlanMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:label="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="RetirementAndPostRetirementBenefitPlansDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="DefinedContributionPlanCostRecognized" xlink:title="DefinedContributionPlanCostRecognized"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanCostRecognized" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanCostRecognized" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredBeforeAugust2008" xlink:label="DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredBeforeAugust2008" xlink:title="DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredBeforeAugust2008"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredBeforeAugust2008" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredBeforeAugust2008" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerContributionMatchingPercentEDSUpTo6PercentOfSalary" xlink:label="DefinedContributionPlanEmployerContributionMatchingPercentEDSUpTo6PercentOfSalary" xlink:title="DefinedContributionPlanEmployerContributionMatchingPercentEDSUpTo6PercentOfSalary"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerContributionMatchingPercentEDSUpTo6PercentOfSalary" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerContributionMatchingPercentEDSUpTo6PercentOfSalary" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerContributionMatchSalaryContributionLimitPercent" xlink:label="DefinedContributionPlanEmployerContributionMatchSalaryContributionLimitPercent" xlink:title="DefinedContributionPlanEmployerContributionMatchSalaryContributionLimitPercent"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerContributionMatchSalaryContributionLimitPercent" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerContributionMatchSalaryContributionLimitPercent" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredAfterAugust2008" xlink:label="DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredAfterAugust2008" xlink:title="DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredAfterAugust2008"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredAfterAugust2008" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to DefinedContributionPlanEmployerContributionMatchingPercentUntilMarch2009HiredAfterAugust2008" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CommonStockDividends401KPlan" xlink:label="CommonStockDividends401KPlan" xlink:title="CommonStockDividends401KPlan"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="CommonStockDividends401KPlan" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to CommonStockDividends401KPlan" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CommonStockSharesHeldInStockFundShares" xlink:label="CommonStockSharesHeldInStockFundShares" xlink:title="CommonStockSharesHeldInStockFundShares"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:to="CommonStockSharesHeldInStockFundShares" xlink:title="definition: RetirementAndPostRetirementBenefitPlansDisclosureAbstract to CommonStockSharesHeldInStockFundShares" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_DefinedContributionPlanDisclosureLineItems" xlink:label="DefinedContributionPlanDisclosureLineItems" xlink:title="DefinedContributionPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ScheduleOfDefinedContributionPlansDisclosuresTable" xlink:label="ScheduleOfDefinedContributionPlansDisclosuresTable" xlink:title="ScheduleOfDefinedContributionPlansDisclosuresTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="DefinedContributionPlanDisclosureLineItems" xlink:to="ScheduleOfDefinedContributionPlansDisclosuresTable" xlink:title="definition: DefinedContributionPlanDisclosureLineItems to ScheduleOfDefinedContributionPlansDisclosuresTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfDefinedContributionPlansDisclosuresTable" xlink:to="DefinedContributionPlansDisclosuresAxis" xlink:title="definition: ScheduleOfDefinedContributionPlansDisclosuresTable to DefinedContributionPlansDisclosuresAxis" use="optional" order="1.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="DefinedContributionPlanDisclosureLineItems" xlink:to="RetirementAndPostRetirementBenefitPlansDisclosureAbstract" xlink:title="definition: DefinedContributionPlanDisclosureLineItems to RetirementAndPostRetirementBenefitPlansDisclosureAbstract" order="2.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureValuationAndQualifyingAccountsDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems" xlink:label="ValuationAndQualifyingAccountsDisclosureLineItems" xlink:title="ValuationAndQualifyingAccountsDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureTable" xlink:label="ValuationAndQualifyingAccountsDisclosureTable" xlink:title="ValuationAndQualifyingAccountsDisclosureTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ValuationAndQualifyingAccountsDisclosureLineItems" xlink:to="ValuationAndQualifyingAccountsDisclosureTable" xlink:title="definition: ValuationAndQualifyingAccountsDisclosureLineItems to ValuationAndQualifyingAccountsDisclosureTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="ValuationAllowancesAndReservesTypeAxis" xlink:title="ValuationAllowancesAndReservesTypeAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ValuationAndQualifyingAccountsDisclosureTable" xlink:to="ValuationAllowancesAndReservesTypeAxis" xlink:title="definition: ValuationAndQualifyingAccountsDisclosureTable to ValuationAllowancesAndReservesTypeAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="ValuationAllowancesAndReservesDomain" xlink:title="ValuationAllowancesAndReservesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ValuationAllowancesAndReservesTypeAxis" xlink:to="ValuationAllowancesAndReservesDomain" xlink:title="definition: ValuationAllowancesAndReservesTypeAxis to ValuationAllowancesAndReservesDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="ValuationAllowancesAndReservesDomain_2" xlink:title="ValuationAllowancesAndReservesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ValuationAllowancesAndReservesTypeAxis" xlink:to="ValuationAllowancesAndReservesDomain_2" xlink:title="definition: ValuationAllowancesAndReservesTypeAxis to ValuationAllowancesAndReservesDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AllowanceForTradeReceivablesMember" xlink:label="AllowanceForTradeReceivablesMember" xlink:title="AllowanceForTradeReceivablesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ValuationAllowancesAndReservesDomain" xlink:to="AllowanceForTradeReceivablesMember" xlink:title="definition: ValuationAllowancesAndReservesDomain to AllowanceForTradeReceivablesMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AllowanceForLossesOnFinanceReceivablesMember" xlink:label="AllowanceForLossesOnFinanceReceivablesMember" xlink:title="AllowanceForLossesOnFinanceReceivablesMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ValuationAllowancesAndReservesDomain" xlink:to="AllowanceForLossesOnFinanceReceivablesMember" xlink:title="definition: ValuationAllowancesAndReservesDomain to AllowanceForLossesOnFinanceReceivablesMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ValuationAndQualifyingAccountsDisclosureAbstract" xlink:label="ValuationAndQualifyingAccountsDisclosureAbstract" xlink:title="ValuationAndQualifyingAccountsDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ValuationAndQualifyingAccountsDisclosureLineItems" xlink:to="ValuationAndQualifyingAccountsDisclosureAbstract" xlink:title="definition: ValuationAndQualifyingAccountsDisclosureLineItems to ValuationAndQualifyingAccountsDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_MovementInValuationAllowancesAndReservesRollForward" xlink:label="MovementInValuationAllowancesAndReservesRollForward" xlink:title="MovementInValuationAllowancesAndReservesRollForward"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ValuationAndQualifyingAccountsDisclosureAbstract" xlink:to="MovementInValuationAllowancesAndReservesRollForward" xlink:title="definition: ValuationAndQualifyingAccountsDisclosureAbstract to MovementInValuationAllowancesAndReservesRollForward" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ValuationAllowancesAndReservesReservesOfBusinessesAcquired" xlink:label="ValuationAllowancesAndReservesReservesOfBusinessesAcquired" xlink:title="ValuationAllowancesAndReservesReservesOfBusinessesAcquired"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="MovementInValuationAllowancesAndReservesRollForward" xlink:to="ValuationAllowancesAndReservesReservesOfBusinessesAcquired" xlink:title="definition: MovementInValuationAllowancesAndReservesRollForward to ValuationAllowancesAndReservesReservesOfBusinessesAcquired" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:label="ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:title="ValuationAllowancesAndReservesChargedToCostAndExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="MovementInValuationAllowancesAndReservesRollForward" xlink:to="ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:title="definition: MovementInValuationAllowancesAndReservesRollForward to ValuationAllowancesAndReservesChargedToCostAndExpense" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ValuationAllowancesAndReservesDeductionsNetOfRecoveries" xlink:label="ValuationAllowancesAndReservesDeductionsNetOfRecoveries" xlink:title="ValuationAllowancesAndReservesDeductionsNetOfRecoveries"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="MovementInValuationAllowancesAndReservesRollForward" xlink:to="ValuationAllowancesAndReservesDeductionsNetOfRecoveries" xlink:title="definition: MovementInValuationAllowancesAndReservesRollForward to ValuationAllowancesAndReservesDeductionsNetOfRecoveries" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="ValuationAllowancesAndReservesBalance" xlink:title="ValuationAllowancesAndReservesBalance"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="MovementInValuationAllowancesAndReservesRollForward" xlink:to="ValuationAllowancesAndReservesBalance" xlink:title="definition: MovementInValuationAllowancesAndReservesRollForward to ValuationAllowancesAndReservesBalance" use="optional" order="4.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureFinancingReceivablesAndOperatingLeasesDetails2">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancingReceivableLineItems" xlink:label="FinancingReceivableLineItems" xlink:title="FinancingReceivableLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" xlink:label="ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" xlink:title="ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="FinancingReceivableLineItems" xlink:to="ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" xlink:title="definition: FinancingReceivableLineItems to ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" order="1.0" p0:closed="true" p0:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancingReceivableInformationByCreditQualityIndicatorAxis" xlink:label="FinancingReceivableInformationByCreditQualityIndicatorAxis" xlink:title="FinancingReceivableInformationByCreditQualityIndicatorAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" xlink:to="FinancingReceivableInformationByCreditQualityIndicatorAxis" xlink:title="definition: ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable to FinancingReceivableInformationByCreditQualityIndicatorAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancingReceivableByCreditQualityIndicatorDomain" xlink:label="FinancingReceivableByCreditQualityIndicatorDomain" xlink:title="FinancingReceivableByCreditQualityIndicatorDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="FinancingReceivableInformationByCreditQualityIndicatorAxis" xlink:to="FinancingReceivableByCreditQualityIndicatorDomain" xlink:title="definition: FinancingReceivableInformationByCreditQualityIndicatorAxis to FinancingReceivableByCreditQualityIndicatorDomain" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancingReceivableByCreditQualityIndicatorDomain" xlink:label="FinancingReceivableByCreditQualityIndicatorDomain_2" xlink:title="FinancingReceivableByCreditQualityIndicatorDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="FinancingReceivableInformationByCreditQualityIndicatorAxis" xlink:to="FinancingReceivableByCreditQualityIndicatorDomain_2" xlink:title="definition: FinancingReceivableInformationByCreditQualityIndicatorAxis to FinancingReceivableByCreditQualityIndicatorDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RiskLevelLowMember" xlink:label="RiskLevelLowMember" xlink:title="RiskLevelLowMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancingReceivableByCreditQualityIndicatorDomain" xlink:to="RiskLevelLowMember" xlink:title="definition: FinancingReceivableByCreditQualityIndicatorDomain to RiskLevelLowMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RiskLevelMediumMember" xlink:label="RiskLevelMediumMember" xlink:title="RiskLevelMediumMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancingReceivableByCreditQualityIndicatorDomain" xlink:to="RiskLevelMediumMember" xlink:title="definition: FinancingReceivableByCreditQualityIndicatorDomain to RiskLevelMediumMember" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RiskLevelHighMember" xlink:label="RiskLevelHighMember" xlink:title="RiskLevelHighMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancingReceivableByCreditQualityIndicatorDomain" xlink:to="RiskLevelHighMember" xlink:title="definition: FinancingReceivableByCreditQualityIndicatorDomain to RiskLevelHighMember" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancingReceivablesAndOperatingLeasesDisclosureAbstract" xlink:label="FinancingReceivablesAndOperatingLeasesDisclosureAbstract" xlink:title="FinancingReceivablesAndOperatingLeasesDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancingReceivableLineItems" xlink:to="FinancingReceivablesAndOperatingLeasesDisclosureAbstract" xlink:title="definition: FinancingReceivableLineItems to FinancingReceivablesAndOperatingLeasesDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_FinancingReceivable" xlink:label="FinancingReceivable" xlink:title="FinancingReceivable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="FinancingReceivablesAndOperatingLeasesDisclosureAbstract" xlink:to="FinancingReceivable" xlink:title="definition: FinancingReceivablesAndOperatingLeasesDisclosureAbstract to FinancingReceivable" use="optional" order="1.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureSubsequentEventsDetails">
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="StatementBusinessSegmentsAxis" xlink:title="StatementBusinessSegmentsAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SegmentBusinessDomain" xlink:label="SegmentBusinessDomain" xlink:title="SegmentBusinessDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="StatementBusinessSegmentsAxis" xlink:to="SegmentBusinessDomain" xlink:title="definition: StatementBusinessSegmentsAxis to SegmentBusinessDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PersonalSystemsGroupMember" xlink:label="PersonalSystemsGroupMember" xlink:title="PersonalSystemsGroupMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SegmentBusinessDomain" xlink:to="PersonalSystemsGroupMember" xlink:title="definition: SegmentBusinessDomain to PersonalSystemsGroupMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="BusinessAcquisitionAxis" xlink:to="BusinessAcquisitionAcquireeDomain" xlink:title="definition: BusinessAcquisitionAxis to BusinessAcquisitionAcquireeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="BusinessAcquisitionAcquireeDomain_2" xlink:title="BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="BusinessAcquisitionAxis" xlink:to="BusinessAcquisitionAcquireeDomain_2" xlink:title="definition: BusinessAcquisitionAxis to BusinessAcquisitionAcquireeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_AutonomyCorporationPlcMember" xlink:label="AutonomyCorporationPlcMember" xlink:title="AutonomyCorporationPlcMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="AutonomyCorporationPlcMember" xlink:title="definition: BusinessAcquisitionAcquireeDomain to AutonomyCorporationPlcMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="SubsequentEventTypeAxis" xlink:title="SubsequentEventTypeAxis"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="SubsequentEventTypeDomain" xlink:title="SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="SubsequentEventTypeAxis" xlink:to="SubsequentEventTypeDomain" xlink:title="definition: SubsequentEventTypeAxis to SubsequentEventTypeDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="SubsequentEventTypeDomain_2" xlink:title="SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="SubsequentEventTypeAxis" xlink:to="SubsequentEventTypeDomain_2" xlink:title="definition: SubsequentEventTypeAxis to SubsequentEventTypeDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_AcquisitionMember" xlink:label="AcquisitionMember" xlink:title="AcquisitionMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="AcquisitionMember" xlink:title="definition: SubsequentEventTypeDomain to AcquisitionMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_DiscontinuedOperationOrAssetDisposalMember" xlink:label="DiscontinuedOperationOrAssetDisposalMember" xlink:title="DiscontinuedOperationOrAssetDisposalMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="DiscontinuedOperationOrAssetDisposalMember" xlink:title="definition: SubsequentEventTypeDomain to DiscontinuedOperationOrAssetDisposalMember" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_RestructuringRelatedAcitvityMember" xlink:label="RestructuringRelatedAcitvityMember" xlink:title="RestructuringRelatedAcitvityMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="RestructuringRelatedAcitvityMember" xlink:title="definition: SubsequentEventTypeDomain to RestructuringRelatedAcitvityMember" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BridgeLoanMember" xlink:label="BridgeLoanMember" xlink:title="BridgeLoanMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventTypeDomain" xlink:to="BridgeLoanMember" xlink:title="definition: SubsequentEventTypeDomain to BridgeLoanMember" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="SubsequentEventLineItems" xlink:title="SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="SubsequentEventTable" xlink:title="SubsequentEventTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="SubsequentEventLineItems" xlink:to="SubsequentEventTable" xlink:title="definition: SubsequentEventLineItems to SubsequentEventTable" order="1.0" p0:contextElement="segment" p0:closed="true"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="SubsequentEventTable" xlink:to="SubsequentEventTypeAxis" xlink:title="definition: SubsequentEventTable to SubsequentEventTypeAxis" use="optional" order="1.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="SubsequentEventTable" xlink:to="BusinessAcquisitionAxis" xlink:title="definition: SubsequentEventTable to BusinessAcquisitionAxis" use="optional" order="2.0"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="SubsequentEventTable" xlink:to="StatementBusinessSegmentsAxis" xlink:title="definition: SubsequentEventTable to StatementBusinessSegmentsAxis" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_ProductOrServiceAxis" xlink:label="ProductOrServiceAxis" xlink:title="ProductOrServiceAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="SubsequentEventTable" xlink:to="ProductOrServiceAxis" xlink:title="definition: SubsequentEventTable to ProductOrServiceAxis" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ProductsAndServicesDomain" xlink:label="ProductsAndServicesDomain" xlink:title="ProductsAndServicesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="ProductOrServiceAxis" xlink:to="ProductsAndServicesDomain" xlink:title="definition: ProductOrServiceAxis to ProductsAndServicesDomain" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ProductsAndServicesDomain" xlink:label="ProductsAndServicesDomain_2" xlink:title="ProductsAndServicesDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="ProductOrServiceAxis" xlink:to="ProductsAndServicesDomain_2" xlink:title="definition: ProductOrServiceAxis to ProductsAndServicesDomain" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_WebOSHardwareMember" xlink:label="WebOSHardwareMember" xlink:title="WebOSHardwareMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ProductsAndServicesDomain" xlink:to="WebOSHardwareMember" xlink:title="definition: ProductsAndServicesDomain to WebOSHardwareMember" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_SubsequentEventsDisclosureAbstract" xlink:label="SubsequentEventsDisclosureAbstract" xlink:title="SubsequentEventsDisclosureAbstract"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventLineItems" xlink:to="SubsequentEventsDisclosureAbstract" xlink:title="definition: SubsequentEventLineItems to SubsequentEventsDisclosureAbstract" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionPreacquisitionContingencyMinimumPercentageOfOwnershipOfferRequiredToBeAccepted" xlink:label="BusinessAcquisitionPreacquisitionContingencyMinimumPercentageOfOwnershipOfferRequiredToBeAccepted" xlink:title="BusinessAcquisitionPreacquisitionContingencyMinimumPercentageOfOwnershipOfferRequiredToBeAccepted"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="BusinessAcquisitionPreacquisitionContingencyMinimumPercentageOfOwnershipOfferRequiredToBeAccepted" xlink:title="definition: SubsequentEventsDisclosureAbstract to BusinessAcquisitionPreacquisitionContingencyMinimumPercentageOfOwnershipOfferRequiredToBeAccepted" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ExpectedPeriodToImplementRestructuringActivityMinimum" xlink:label="ExpectedPeriodToImplementRestructuringActivityMinimum" xlink:title="ExpectedPeriodToImplementRestructuringActivityMinimum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="ExpectedPeriodToImplementRestructuringActivityMinimum" xlink:title="definition: SubsequentEventsDisclosureAbstract to ExpectedPeriodToImplementRestructuringActivityMinimum" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ExpectedPeriodToImplementRestructuringActivityMaximum" xlink:label="ExpectedPeriodToImplementRestructuringActivityMaximum" xlink:title="ExpectedPeriodToImplementRestructuringActivityMaximum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="ExpectedPeriodToImplementRestructuringActivityMaximum" xlink:title="definition: SubsequentEventsDisclosureAbstract to ExpectedPeriodToImplementRestructuringActivityMaximum" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_GoodwillAndOtherIntangibleAssets" xlink:label="GoodwillAndOtherIntangibleAssets" xlink:title="GoodwillAndOtherIntangibleAssets"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="GoodwillAndOtherIntangibleAssets" xlink:title="definition: SubsequentEventsDisclosureAbstract to GoodwillAndOtherIntangibleAssets" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_BridgeLoan" xlink:label="BridgeLoan" xlink:title="BridgeLoan"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="BridgeLoan" xlink:title="definition: SubsequentEventsDisclosureAbstract to BridgeLoan" order="8.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BridgeFacilityTerm" xlink:label="BridgeFacilityTerm" xlink:title="BridgeFacilityTerm"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="BridgeFacilityTerm" xlink:title="definition: SubsequentEventsDisclosureAbstract to BridgeFacilityTerm" order="9.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ForeignCurrencyExchangeOptionExpense" xlink:label="ForeignCurrencyExchangeOptionExpense" xlink:title="ForeignCurrencyExchangeOptionExpense"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="ForeignCurrencyExchangeOptionExpense" xlink:title="definition: SubsequentEventsDisclosureAbstract to ForeignCurrencyExchangeOptionExpense" order="3.5"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShareAfterBalanceSheetDate" xlink:label="BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShareAfterBalanceSheetDate" xlink:title="BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShareAfterBalanceSheetDate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShareAfterBalanceSheetDate" xlink:title="definition: SubsequentEventsDisclosureAbstract to BusinessAcquisitionCostOfAcquiredEntityPurchasePricePerShareAfterBalanceSheetDate" order="1.5"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_CashReserveMinimum" xlink:label="CashReserveMinimum" xlink:title="CashReserveMinimum"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="CashReserveMinimum" xlink:title="definition: SubsequentEventsDisclosureAbstract to CashReserveMinimum" use="optional" order="3.2"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAfterBalanceSheetDate" xlink:label="BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAfterBalanceSheetDate" xlink:title="BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAfterBalanceSheetDate"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAfterBalanceSheetDate" xlink:title="definition: SubsequentEventsDisclosureAbstract to BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAfterBalanceSheetDate" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ExpectedCostAndAdjustmentsWebOsBusiness" xlink:label="ExpectedCostAndAdjustmentsWebOsBusiness" xlink:title="ExpectedCostAndAdjustmentsWebOsBusiness"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="ExpectedCostAndAdjustmentsWebOsBusiness" xlink:title="definition: SubsequentEventsDisclosureAbstract to ExpectedCostAndAdjustmentsWebOsBusiness" use="optional" order="5.5"/>
    <link:loc xlink:type="locator" xlink:href="http://taxonomies.xbrl.us/us-gaap/2009/elts/us-gaap-2009-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost" xlink:label="RestructuringAndRelatedCostExpectedCost" xlink:title="RestructuringAndRelatedCostExpectedCost"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="SubsequentEventsDisclosureAbstract" xlink:to="RestructuringAndRelatedCostExpectedCost" xlink:title="definition: SubsequentEventsDisclosureAbstract to RestructuringAndRelatedCostExpectedCost" use="optional" order="6.0"/>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.hp.com/role/DisclosureBalanceSheetDetailsDetails">
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivableFacilityLineItems" xlink:label="TradeReceivableFacilityLineItems" xlink:title="TradeReceivableFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivablesSaleProgramFacility" xlink:label="TradeReceivablesSaleProgramFacility" xlink:title="TradeReceivablesSaleProgramFacility"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="TradeReceivablesSaleProgramFacility" xlink:title="definition: TradeReceivableFacilityLineItems to TradeReceivablesSaleProgramFacility" use="optional" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_ProceedsFromSaleOfTradeReceivables" xlink:label="ProceedsFromSaleOfTradeReceivables" xlink:title="ProceedsFromSaleOfTradeReceivables"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="ProceedsFromSaleOfTradeReceivables" xlink:title="definition: TradeReceivableFacilityLineItems to ProceedsFromSaleOfTradeReceivables" use="optional" order="3.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivablesSaleProgramAvailableAmount" xlink:label="TradeReceivablesSaleProgramAvailableAmount" xlink:title="TradeReceivablesSaleProgramAvailableAmount"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="TradeReceivablesSaleProgramAvailableAmount" xlink:title="definition: TradeReceivableFacilityLineItems to TradeReceivablesSaleProgramAvailableAmount" use="optional" order="4.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PercentOfAmountsUncollectedPayableToPurchaser" xlink:label="PercentOfAmountsUncollectedPayableToPurchaser" xlink:title="PercentOfAmountsUncollectedPayableToPurchaser"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="PercentOfAmountsUncollectedPayableToPurchaser" xlink:title="definition: TradeReceivableFacilityLineItems to PercentOfAmountsUncollectedPayableToPurchaser" use="optional" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivablesSaleProgramMaximumCapacityWithRecourse" xlink:label="TradeReceivablesSaleProgramMaximumCapacityWithRecourse" xlink:title="TradeReceivablesSaleProgramMaximumCapacityWithRecourse"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="TradeReceivablesSaleProgramMaximumCapacityWithRecourse" xlink:title="definition: TradeReceivableFacilityLineItems to TradeReceivablesSaleProgramMaximumCapacityWithRecourse" use="optional" order="5.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivablesSoldWithRecourse" xlink:label="TradeReceivablesSoldWithRecourse" xlink:title="TradeReceivablesSoldWithRecourse"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="TradeReceivablesSoldWithRecourse" xlink:title="definition: TradeReceivableFacilityLineItems to TradeReceivablesSoldWithRecourse" use="optional" order="6.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivablesSaleProgramAvailableCapacityWithRecourse" xlink:label="TradeReceivablesSaleProgramAvailableCapacityWithRecourse" xlink:title="TradeReceivablesSaleProgramAvailableCapacityWithRecourse"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="TradeReceivablesSaleProgramAvailableCapacityWithRecourse" xlink:title="definition: TradeReceivableFacilityLineItems to TradeReceivablesSaleProgramAvailableCapacityWithRecourse" use="optional" order="7.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivableFacilityTable" xlink:label="TradeReceivableFacilityTable" xlink:title="TradeReceivableFacilityTable"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="TradeReceivableFacilityLineItems" xlink:to="TradeReceivableFacilityTable" xlink:title="definition: TradeReceivableFacilityLineItems to TradeReceivableFacilityTable" order="1.0" p0:contextElement="segment" p0:closed="true"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivableFacilityAxis" xlink:label="TradeReceivableFacilityAxis" xlink:title="TradeReceivableFacilityAxis"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="TradeReceivableFacilityTable" xlink:to="TradeReceivableFacilityAxis" xlink:title="definition: TradeReceivableFacilityTable to TradeReceivableFacilityAxis" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivableFacilityDomain" xlink:label="TradeReceivableFacilityDomain" xlink:title="TradeReceivableFacilityDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="TradeReceivableFacilityAxis" xlink:to="TradeReceivableFacilityDomain" xlink:title="definition: TradeReceivableFacilityAxis to TradeReceivableFacilityDomain" use="optional" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivableFacilityDomain" xlink:label="TradeReceivableFacilityDomain_2" xlink:title="TradeReceivableFacilityDomain"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="TradeReceivableFacilityAxis" xlink:to="TradeReceivableFacilityDomain_2" xlink:title="definition: TradeReceivableFacilityAxis to TradeReceivableFacilityDomain" use="optional" priority="1" order="2.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivableFacilityNonRecourseBasisMember" xlink:label="TradeReceivableFacilityNonRecourseBasisMember" xlink:title="TradeReceivableFacilityNonRecourseBasisMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityDomain" xlink:to="TradeReceivableFacilityNonRecourseBasisMember" xlink:title="definition: TradeReceivableFacilityDomain to TradeReceivableFacilityNonRecourseBasisMember" order="8000.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_TradeReceivableFacilityPartialRecourseBasisMember" xlink:label="TradeReceivableFacilityPartialRecourseBasisMember" xlink:title="TradeReceivableFacilityPartialRecourseBasisMember"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityDomain" xlink:to="TradeReceivableFacilityPartialRecourseBasisMember" xlink:title="definition: TradeReceivableFacilityDomain to TradeReceivableFacilityPartialRecourseBasisMember" order="1.0"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_PartialRecourseTradeReceivablesSaleProgramFacility" xlink:label="PartialRecourseTradeReceivablesSaleProgramFacility" xlink:title="PartialRecourseTradeReceivablesSaleProgramFacility"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="PartialRecourseTradeReceivablesSaleProgramFacility" xlink:title="definition: TradeReceivableFacilityLineItems to PartialRecourseTradeReceivablesSaleProgramFacility" order="2.5"/>
    <link:loc xlink:type="locator" xlink:href="hpq-20110731.xsd#hpq_NonRecourseTradeReceivablesSaleProgramFacility" xlink:label="NonRecourseTradeReceivablesSaleProgramFacility" xlink:title="NonRecourseTradeReceivablesSaleProgramFacility"/>
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="TradeReceivableFacilityLineItems" xlink:to="NonRecourseTradeReceivablesSaleProgramFacility" xlink:title="definition: TradeReceivableFacilityLineItems to NonRecourseTradeReceivablesSaleProgramFacility" use="optional" order="2.75"/>
  </link:definitionLink>
</link:linkbase>
