计算机导论试题文库（introduction to computer questions library）

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1、计算机导论试题文库（Introductiontocomputerquestionslibrary）Achoice,markingthescore(30points)1.representsunsignedintegerswithonebyte,andthemaximumisdecimalnumbers.A.256B.255C.127D.1282.acompletecomputersystemshallinclude().A.ALU,controllerandmemoryB.hostandapplicationprogra

2、mC.hardwaresystemandsoftwaresystemD.hostandexternaldeviceCPUinmicrocomputer3.refersto().A.memoryandarithmeticB.inputdeviceandoutputdeviceC.memoryandcontrollerD.controllerandarithmeticunit4.theperformanceofacomputerdependsmainlyon().A.wordlength,operationspeedandm

3、emorycapacity,B.diskcapacityandprinterqualityC.operatingsystemandexternalequipmentD.machinepriceandconfiguredoperatingsystem5.thetrackonthediskis().A.agroupofconcentriccircleswithdifferentdensitiesofB.recordingconcentriccirclesofthesamedensityC.agroupofArchimedes

4、spiralD.withdifferentdensities,recordingaArchimedesspiralwiththesamedensity6.thefollowingE–mailaddressiscorrect().A.wangfang/hnrtu.edu.cnB.wangfang.hnrtu.edu.cnC.wangfang#hnrtu.edu.cnD.wangfang@hnrtu.edu.cn7.UNIXoperatingsystemisakindof().A.singleusersingletaskop

5、eratingsystemB.realtimeoperatingsystemC.multi-usermultitaskingoperatingsystemD.singleusermultitaskoperatingsystem8.thefollowingfouritems,whicharenotcharacteristicofcomputerviruses,are().A.latentB.immunityC.infectivityD.excitation9.theROMinthemainmemoryofanelectro

6、niccomputerrefersto().A.can'tchangeitsdata.B.canonlyreaddataandcannotwritedataC.isusuallyusedtostoresystemprogramsD.ormore10.inthemicrocomputersoldonthemarket,itisoftenseenthatCPUislabeled"Pentium4/1.2G",inwhich1.2Gmeans().ThemainclockfrequencyofA.CPUis1.2GMHzB.C

7、PU,andtheoperationspeedis1.2Gb/sDataexchangeratebetweenD.CPUandmemoryinC.processor11.thefollowingstatementsarecorrect.A.1KB=1024x1024BytesB.1KB=1024MBC.1MB=1024x1024BytesD.1MB=1024Bytes12.minimumneed()bitbinarytorepresentanyfourbitlongdecimalnumber.A.10B.14C.13D.

8、1613.inthefollowingmemory,afterthepowerlosswillloseinformationis().A.ROMB.RAMC.CD-ROMD.harddiskThecauseofthe14.virusis().A.userprogramerrorB.computerhardwarefa