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计算机专业英语复习资料（二）1.HowmanylayersdoestheISO/OSImodehave?(seven)2.Externaldevicesarelinkedtoasmallcomputersystemthrough(interfaces).3.CPUhasonlytwofundamentalsections:thearithmeticandlogicunitand(thecontrolunit).4.Objected-basedlogicmodelsareusedfor(describingdataattheconceptualandviewlevels)5.arithmeticandlogicunitexecutesinstructions6.Whichisansimplytheapplicationofinternettechnologywithinaninternalorclosedgroup?(intranet)7．CD-ROMbelongsto(opticallaserdisk)8.Acollectionofconceptualtoolsfordescribingdata,datarelationships,datasemanticsanddataconstraintsisa(datamodel)9.TheOpenSystemsInterconnection(OSI)referencemodelisbasedonaproposaldevelopedby(ISO)10.Thesoftwarethatallowsoneormanypersonstouseand/ormodifythisdataisa(DBMS)11.Thephysicalcomponentsofacomputerarecollectivelycalled(hardware).1.12..Themostpopularprocessorinterconnectiontopologyisthe(hypercube).13.Thepartofaninstructionthattellstheprocessorwhattodoisthe(operand).14.Thepartofaninstructionthattellstheprocessorwhattodoisthe(operationcode).15.Thepermanentlyusefuldataisstoredin(theROM)16.Theinterferencethatdistortselectronicsignalstransmittedoveradistanceiscalled(noise).17.Allfunctionsinspreadsheetsstartwith(anequalsign).18.AnE-mailservercanbeconsideredasa(powerfuloperatingsystem)19.Aprogrammingtechniquethatallowsyoutoviewconceptsasavarietyofobjectsiscalled(objectorientedprogramming)21.Aprograminstructionorapieceofdataisstoredinaspecificprimarystoragelocationcalledan(address)22.Abusthatisusedtocontroltheaccesstoandtheuseofthedataandaddressbusiscalled(controlbus)23.Alocationinmemoryisaccessedbyits(address).24.AsmallpieceofcodethatcanbetransportedovertheInternetandexecutedontherecipient’smachine.Thesentencedescribes(applet)25.AnE-mailservercanbeconsideredasa(high-configurationcomputer).26.Aprotocolisasetof(regulations).27.Whichnetworksusuallyspantensofkilometers?(Metropolitanarea)28.Acomputersystemhasinput,output,storage,and(CPU).29.AllIntranetrelateddocumentsarewrittenin(HTML)30.The(client-servermodel)31.(anequalsign).33.Programmerswrite(sourcecode).34.PrimarystorageprovidestheCPUwithtemporarystorageforprogramsanddata35.WhenaCPUneedsthedatatooperate,itgoeswherefirst?(thecache).36.Whenhypertextpagesaremixedwithothermedia,theresultiscalled(hypermedia)37.The“brain”ofacomputersystemis(CPU)40.Whatdoesaworksheetmean?(aworkingareaframedbylettersandnumbers)41.Beforetypinginanydata,auserneedsto(selectthecell).42.Acomputersystemhasfourparts,theyareoutput,storage,processingcomponentsand(input)43.Anothernameforprimarystorageis(RAM).45.Thebasicoutputdeviceonasmallcomputerisa(displayscreen).46.Topreventuserprogramsfrominterferingwiththeproperoperationofthesystem,thehardwarewasmodifiedtocreatetwomodels:(Usermodeandmonitormode)47.Adatamodelisacollectionofconceptualtoolfordescribing(data,datarelationship,datasemantics,dataconstraints)48.Whatkindofcomputerwouldapplyseveralinstructionstoeachdatumitfetchesformmemory?(MISD)49.Whatisacomputerprogram?(asetofinstructions)50．Acommunicationpathwayconnectingtwoormoredevicesisa(channel)51.Howmanybasicunitsdotoday'sdigitalcomputersconsistof?(4)52.LCDisbasedonTFT53.OpticallaserdiskincludesCD-ROM,magneto-opticaldiskand(WORMdisk)54.Aspecialtypeofprimarystoragewhichcannotbealteredbytheprogrammeriscalled(ROM)55.Alistofprotocolsusedbyacertainsystem,oneprotocolperlayer,iscalleda(protocolstack)56.Therealizationofthemobileinternetreliesonanewsetofstandards,knownasthe(WAP)57.WhatdoesAworksheetmean?(anEXCELprogram)58.HowmanydifferenttypesofEntityrelationshipsarethere?(4)59.Whatkindofcomputerwouldapplyoneinstructionstoeachdatumitfetchesformmemory?(SISD)60．Cachememoryisemployedbycomputerdesignerstoincreasecomputersystem(throughput)61.TheCentralProcessorhasonlytwofundamentalsections(thecontrolunitandthearithmeticandlogicunit)62.TheOpenSystemsInterconnection(OSI)referencemodelisbasedonaproposaldevelopedby(ISO).63.Thebasicoutputdeviceonasmallcomputerisa(displayscreen).64.HowmanypartsarethereinURL?(3)65.AllIntranetrelateddocumentsarewrittenin(HTML)66.Acomputersystemhasfiveparts,theyareinput,output,processingcomponents,controlunitand(storage).67.WhatdoesHTTPstandfor?(HypertextTransferProtocol)68．Howmanyrecord-basedlogicalmodelsarewidelyused?(3)69.HowmanydifferenttypesofEntityrelationshipsarethere?(4)70.Normally,howlongdoesauserneedtowaituntilhis/herE-mailaccountisreadyifhe/sheappliesforitfromanISP?(notime)71.Abusthatisusedtodesignatethesourceordestinationofthedataonthedatabusiscalled(addressbus)72..Outputdevicesdon’tinclude(scanner)73.WhatdoesICstandfor?(IntelligentCircuit)74.Thesoftwarewhichactsasaninterfacebetweenauserofacomputerandthecomputerhardwareis(operatingsystem)75.Theprotocolwhichdownloadsfilesfreeofchargefromthousandsofcomputersaroundtheglobeis(FTPprotocol)76.Outputdevicesdon’tinclude(mouse)77.Dataandprograminstructionsarestoredin(memory).78.Howmanymaincategoriesofopticallaserdisksarethere?(3)79.Aprotocolisasetof(regulations).80.Whatisasetofp