<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Version>2.4.0.8</Version><ReportLongName>125 - Disclosure - Description of Business (Tables)</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><CurrencyCode /><FootnoteIndexer /><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><MCU><KeyName /><CurrencySymbol /><contextRef><ContextID>P01_01_2013To06_30_2013</ContextID><EntitySchema>http://www.sec.gov/CIK</EntitySchema><EntityValue>0000944739</EntityValue><PeriodDisplayName /><PeriodType>duration</PeriodType><PeriodStartDate>2013-01-01T00:00:00</PeriodStartDate><PeriodEndDate>2013-06-30T00:00:00</PeriodEndDate><Segments /><Scenarios /></contextRef><UPS /><CurrencyCode /><OriginalCurrencyCode /></MCU><CurrencySymbol /><Labels><Label Key="CalendarSupplement" Id="0" Label="6 Months Ended" /><Label Key="Calendar" Id="1" Label="Jun. 30, 2013" /></Labels></Column></Columns><Rows><Row FlagID="0"><Id>1</Id><IsAbstractGroupTitle>true</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>1</Level><ElementName>us-gaap_AccountingPoliciesAbstract</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText /><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>xbrli:stringItemType</ElementDataType><SimpleDataType>string</SimpleDataType><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Accounting Policies [Abstract]</Label></Row><Row FlagID="0"><Id>2</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>2</Level><ElementName>us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>label</PreferredLabelRole><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="P01_01_2013To06_30_2013" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>              &lt;table border="0" style="clear:both;width:100%; table-layout:fixed;"&gt;  &lt;tr&gt;  &lt;td&gt;&lt;/td&gt;  &lt;/tr&gt;  &lt;/table&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif "&gt;  &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-ALIGN: justify; TEXT-INDENT: 24.5pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  Customers that accounted for more than &lt;font style=" FONT-SIZE: 10pt"&gt;10&lt;/font&gt;% of total accounts receivable at each  period end follow:&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-ALIGN: justify; TEXT-INDENT: 24.5pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &amp;#160;&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;MARGIN: 0in 0in 0pt; FONT-SIZE: 10pt"&gt;  &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-ALIGN:center; TEXT-INDENT: 0in; WIDTH: 100%"   align="center"&gt;  &lt;table style="clear:both;BORDER-BOTTOM: #9eb6ce 0px solid; BORDER-LEFT: #9eb6ce 0px solid; MARGIN: 0px:auto; WIDTH: 70%; BORDER-COLLAPSE: collapse; OVERFLOW: visible; BORDER-TOP: #9eb6ce 0px solid; BORDER-RIGHT: #9eb6ce 0px solid"   cellspacing="0" cellpadding="0" align="center"&gt;  &lt;tr style="HEIGHT: 12px"&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="41%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="13%" colspan="2"&gt;  &lt;div&gt;June&amp;#160;30,&amp;#160;&lt;br/&gt;   2013&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="BORDER-BOTTOM: #000000 1px solid; TEXT-ALIGN: center; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;December&amp;#160;31,&lt;br/&gt;   2012&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr style="HEIGHT: 12px"&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="41%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; BORDER-TOP: #000000 1px solid; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: right; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; BORDER-TOP: #000000 1px solid; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: right; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; BORDER-TOP: #000000 1px solid; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr style="HEIGHT: 12px"&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="41%"&gt;  &lt;div&gt;Customer&amp;#160;A&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: right; FONT-STYLE: normal; PADDING-RIGHT: 5px; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;20&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;%&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: right; FONT-STYLE: normal; PADDING-RIGHT: 5px; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;29&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;%&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr style="HEIGHT: 12px"&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ffffff; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="41%"&gt;  &lt;div&gt;Customer&amp;#160;B&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ffffff; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ffffff; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: right; FONT-STYLE: normal; PADDING-RIGHT: 5px; FONT-FAMILY: Times New Roman; BACKGROUND: #ffffff; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;17&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ffffff; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;%&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ffffff; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: right; FONT-STYLE: normal; PADDING-RIGHT: 4px; FONT-FAMILY: Times New Roman; BACKGROUND: #ffffff; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;*&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ffffff; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;    &lt;tr style="HEIGHT: 12px"&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="41%"&gt;  &lt;div&gt;Customer C&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: right; FONT-STYLE: normal; PADDING-RIGHT: 5px; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;*&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;&amp;#160;&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: right; FONT-STYLE: normal; PADDING-RIGHT: 5px; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="12%"&gt;  &lt;div&gt;26&lt;/div&gt;  &lt;/td&gt;  &lt;td style="TEXT-ALIGN: left; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; BACKGROUND: #ccffcc; FONT-SIZE: 10pt; VERTICAL-ALIGN: bottom; FONT-WEIGHT: 400"   width="1%"&gt;  &lt;div&gt;%&lt;/div&gt;  &lt;/td&gt;  &lt;/tr&gt;  &lt;/table&gt;  &lt;/div&gt;  &lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &amp;#160;&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-ALIGN: center; MARGIN-TOP: 0pt; FONT: 10pt Times New Roman, Times, Serif; MARGIN-BOTTOM: 0pt"&gt;  * Accounts receivable due were less than 10% of the Company&amp;#8217;s  total accounts receivable.&lt;/div&gt;  &lt;/div&gt;        </NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 275

 -SubTopic 10

 -Section 50

 -Paragraph 16

 -URI http://asc.fasb.org/extlink&amp;oid=6927468&amp;loc=d3e6327-108592



Reference 2: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 275

 -SubTopic 10

 -Section 50

 -Paragraph 20

 -URI http://asc.fasb.org/extlink&amp;oid=6927468&amp;loc=d3e6404-108592



Reference 3: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 825

 -SubTopic 10

 -Section 50

 -Paragraph 20

 -URI http://asc.fasb.org/extlink&amp;oid=28364263&amp;loc=d3e13531-108611



Reference 4: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 275

 -SubTopic 10

 -Section 50

 -Paragraph 18

 -URI http://asc.fasb.org/extlink&amp;oid=6927468&amp;loc=d3e6351-108592



Reference 5: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 825

 -SubTopic 10

 -Section 50

 -Paragraph 21

 -URI http://asc.fasb.org/extlink&amp;oid=28364263&amp;loc=d3e13537-108611



Reference 6: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 275

 -SubTopic 10

 -Section 50

 -Paragraph 21

 -URI http://asc.fasb.org/extlink&amp;oid=6927468&amp;loc=d3e6442-108592



</ElementReferences><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Schedules of Concentration of Risk, by Risk Factor [Table Text Block]</Label></Row></Rows><Footnotes /><IsEquityReport>false</IsEquityReport><ReportName>Description of Business (Tables)</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>true</HasCustomUnits><IsEmbedReport>false</IsEmbedReport><IsMultiCurrency>false</IsMultiCurrency><ReportType>Sheet</ReportType><RoleURI>http://www.transwitch.com/role/DescriptionOfBusinessTables</RoleURI><NumberOfCols>1</NumberOfCols><NumberOfRows>2</NumberOfRows></InstanceReport>
