<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-04-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000276283</issuerCik>
        <issuerName>EVANS &amp; SUTHERLAND COMPUTER CORP</issuerName>
        <issuerTradingSymbol>ESCC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000929212</rptOwnerCik>
            <rptOwnerName>WINN STEPHEN T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4143 MAPLE AVENUE, SUITE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75219</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001804559</rptOwnerCik>
            <rptOwnerName>Mirasol Capital, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4143 MAPLE AVENUE, SUITE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75219</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001804145</rptOwnerCik>
            <rptOwnerName>Elevate Entertainment Holdings Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4143 MAPLE AVENUE, SUITE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75219</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001802887</rptOwnerCik>
            <rptOwnerName>Elevate Entertainment Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4143 MAPLE AVENUE, SUITE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75219</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001802886</rptOwnerCik>
            <rptOwnerName>Elevate Acquisition Corp</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4143 MAPLE AVENUE, SUITE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75219</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.20</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2020-04-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>884962</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.19</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On April 6, 2020, Elevate Entertainment Inc. (&quot;Parent&quot;) completed the transactions contemplated by the Agreement and Plan of Merger, dated as of February 9, 2020 (the &quot;Merger Agreement&quot;), by and among Evans &amp; Sutherland Computer Corporation (the &quot;Issuer&quot;), Parent and Elevate Acquisition Corporation (&quot;Purchaser&quot;) (the &quot;Merger Agreement&quot;).  Pursuant to the terms of the Merger Agreement, Purchaser merged with and into the Issuer (the &quot;Merger&quot;), with the Issuer surviving the Merger as a subsidiary of Parent (the &quot;Surviving Corporation&quot;).  At the effective time of the Merger, each outstanding share of common stock of Purchaser converted into and became one validly issued, fully-paid and non-assessable share of common stock of the Surviving Corporation.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Stephen T. Winn</signatureName>
        <signatureDate>2020-04-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jeb Terry Jr., Managing Director, Mirasol Capital, LLC</signatureName>
        <signatureDate>2020-04-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jeb Terry Jr., President and Chief Executive Officer, Elevate Entertainment Holdings Inc.</signatureName>
        <signatureDate>2020-04-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jeb Terry Jr., President and Chief Executive Officer, Elevate Entertainment Inc.</signatureName>
        <signatureDate>2020-04-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jeb Terry Jr., President and Chief Executive Officer, Elevate Acquisition Corporation</signatureName>
        <signatureDate>2020-04-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
