计算机专业英语 第3版 教学课件 作者 王祥林 陈静姣 09 Computer Software.ppt

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1、Text1WhatIstheComputerSoftware?Unit9ComputerSoftwareText2RelationshiptoHardwareandDataText3CategoriesofComputerSoftwareText4CopyrightInfringementofSoftwareText1WhatIstheComputerSoftware?VocabularyandKeywords（生词和关键词）Notes（注释）TermsandTips（术语和提示信息）Computerplaysakeyroleinhowin

2、dividualsworkandhowtheylive[1].Eventhesmallestorganizationshavecomputerstohelpthemoperatemoreefficiently,andmanyindividualsusecomputersathomeforeducational,entertainment,andbusinesspurposes.Thecomputersmakethemenmoreproductive[2].Whatmakesthecomputersopowerfulissoftware(Fi

3、gure9-1).Softwaredetermineswhatacomputercando.Inasense,ittransformsthecomputerintoaversatilemachine.Figure9-1ComputersoftwareComputersoftwareisasetofinstructionsthattellsacomputerhowtoperformaparticulartask[3].Tobeuseful,acomputerhastobeinstalledvarioussoftware.Acomputerwi

4、thoutsoftwareisjustlikearecordplayerwithoutanyrecords,atapeplayerwithoutanytapesoraCDplayerwithoutanyCDs[4].Withoutsoftware,acomputerisjustauselessgadgetwithapowerswitch.Awordprocessingprogramthatyoucanusetowritelettersonyourcomputerisatypeofsoftware.Theoperatingsystem(OS)

5、issoftwarethatmanagesyourcomputerandthedevicesconnectedtoit.UsuallythecomputersoftwareisdistributedonCDsorDVDs.SomesoftwaresuchasfreewarealsocanbedownloadedfromtheInternet.Computersoftwareisessentiallycomposedofasetofinstructionswhichisalsoreferredtoascomputerprograms[5].C

6、omputerprogrammerswriteinstructionsforthecomputerprogramsthatbecomethecomponentsofacomputersoftwareproduct.ThefinishedsoftwareproductisthendistributedonCDsorDVDsbysoftwarepublishers,whicharecompaniesthatspecializeinmarketingandsellingcommercialsoftware[6]．ThesoftwareCDorDV

7、Dcontainsmanyfileswithdifferentextensions.Thefileswith.exeextensionareuser-executableprogramfilesanddesignedtobelaunched,orstartedbyusers.Tostartthefiles,userscandouble-clickthefileicons[7].Otherfilesarenotdesignedtoberunbyusers.Thesesupportprogramscontaininstructionsforth

8、ecomputertousewiththemainuser-executablefile.Inadditiontotheseprogramfiles,somedatafilesa