计算机专业英语一0775715日上午复习资料

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1、计算机专业英语--07757-15日上午-复习资料一、选择填空题：1.HowmanylayersdoestheISO/OSImodehave?(seven)2.HowmanydifferenttypesofEntityrelationshipsarethere?(4)3.HowmanypartsarethereinURL?(3)04．Howmanyrecord-basedlogicalmodelsarewidelyused?(3)5.HowmanydifferenttypesofEntityrelationshipsarethere?(4)6.HowmanylayersdoestheTCP/I

2、Playeringmodelhave?(5)7.Howmanybasicunitsdotoday'sdigitalcomputersconsistof?(4)8.Howmanyclassesarethedatamodelsdividedinto?(3)9.Howmanybasicoperatingsystemtypesarethere?(3)10.Hehadalarge(number)offactstoprovehisstatements.11.Hetoldmeall(Asaresult),hewillhavetobeawayfromschoolfortwoorthreemonths.12.H

3、owdataarerepresentedinsideacomputersysteminelectronicstatescalled(.bits)13.Howmanybasicoperatingsystemtypesarethere?(3).14.Howmanyrecord-basedlogicalmodelsarewidelyused?(3)HTMLstandfor(HypertextMarkupLanguage)15.Externaldevicesarelinkedtoasmallcomputersystemthrough(interfaces).16.CPUhasonlytwofundam

4、entalsections:thearithmeticandlogicunitand(thecontrolunit).17.arithmeticandlogicunitexecutesinstructionsCD-ROMbelongsto(opticallaserdisk)18.Creatingthedatabaseanditstablestructureuses(datadefinition)19.Acollectionofconceptualtoolsfordescribingdata,datarelationships,datasemanticsanddataconstraintsisa

5、(datamodel)20.Anothernameforprimarystorageis(RAM).21.Acomputersystemhasfiveparts,theyareinput,output,storage,controlunitand(processingcomponents).22.Aspecialtypeofprimarystoragewhichcannotbealteredbytheprogrammeriscalled(ROM)23.Alistofprotocolsusedbyacertainsystem,oneprotocolperlayer,iscalleda(proto

6、colstack)24.Acomputersystemhasfourparts,theyareoutput,storage,processingcomponentsand(input)25.Anothernameforprimarystorageis(RAM).26.Adatamodelisacollectionofconceptualtoolfordescribing(data,datarelationship,datasemantics,dataconstraints)27.Acommunicationpathwayconnectingtwoormoredevicesisa(channel

7、)28.Aprograminstructionorapieceofdataisstoredinaspecificprimarystoragelocationcalledan(address)29.Allfunctionsinspreadsheetsstartwith(anequalsign).30.Abusthatisusedtodesignatethesourceordestinationoft