计算机专业英语 大连理工大学 第三学期专科期末复习资料答案Word文件下载.docx
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计算机专业英语 大连理工大学 第三学期专科期末复习资料答案Word文件下载.docx
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1、()standsforCentralProcessingUnit.Itperformsthesystem'
scalculatingandprocessing.
A.computer
B.CPU
C.inputdevice
D.outputdevice
2、A()isanelectronicdevicethatoperatesunderthecontrolofinstructionsstoredinitsownmemory,whichcanaccordingtospecifiedrules,produceresults,andstoretheresultsforfutureuse.
A.computer
B.CPU
C.inputdevice
D.outputdevice
3、Thefirstgenerationofcomputeris().
A.vacuumtubes
B.transistors
C.integratedcircuits
D.microprocessors
4、()referstothephysicalequipmentthatcanperformthebasicfunctionscontainedwithinthedataprocessingcycle.
A.Software
B.Hardware
C.Memory
D.CPU
5、()aretheperipheralsthatallowuserstoenterdata,programs,commands,anduserresponsesintoacomputerandtransformthemintoasuitableformforprocessing.
A.RAM
B.ROM
C.Inputdevices
D.Memory
6、A()istheprimaryinputdevice.Itisusedforenteringletters,numbersandcommandsintothesystem.
B.keyboard
C.outputdevices
D.memory
7、A()isacablewhichiscapableofcarryingsignalsrepresentingdatafromoneplacetoanother.
A.bus
B.USB
C.port
D.keyboard
8、Thefourthgenerationofcomputeris().
9、()standsforRandomAccessMemory.ItisthemainlocationforholdingprogramsanddatathattheCPUispresentlyprocessing.
B.ROM
C.inputdevices
10、()standsforReadOnlyMemory,itisthecomputermemoryonwhichdatahasbeenprerecorded.
C.CPU
11、()performsarithmetic,comparison,andlogicoperations.ItisonepartoftheCPU.
D.ALU
12、()havemorestoragecapacitythandiskettesandalsoofferfasteraccesstothedatatheyhold.
A.Harddisks
B.Opticaldisks
C.Zipdisk
D.CD
13、()areoutputdevicesthatprintcharacters,symbols,andgraphicsonaphysicalmediumsuchaspaperandatransparencyfile.
A.Flatpanelmonitors
B.Printers
C.Keyboards
D.Pointingdevice
14、Thefirstcomputersused()forcircuitryandmagneticdrumsformemory,andwereoftenenormous,takingupentirerooms.
15、()istheelectronicdevicethatinterpretsandcarriesoutthebasicinstructionsthatoperatethecomputer.
A.Processor
B.hardware
C.memory
16、()isoneofthecomponentsoftheCPU,tellstherestofthecomputersystemhowtocarryoutaprogram'
sinstructions.
A.Controlunit
B.ALU
C.RAM
D.ROM
17、ThetwocomponentsoftheCPUareconnectedbyakindofelectronicroadwaycalleda(an)().
A.USB
B.bus
18、The()isthecommunicationsmediumfortheentirecomputersystem.
A.systemboard
B.input
C.output
D.bus
19、()canbeintheformofprograms,commandsanduserresponses.
A.Processor
B.Instructions
C.Mouse
D.Port
20、Theprocessoftranslatinginstructionsintocommandsiscalled().
A.decoding
B.register
C.digital
D.port
21、()alsocalledaprogram,istheseriesofcomputerlanguagecodedinstructionsthattellsthecomputerhowtoperformtasks.
C.Compiler
D.Interpreter
22、Twotypesofsoftwareare()andapplicationsoftware.
A.systemsoftware
B.systemcall
C.systemcrash
D.systemhardware
23、The()isautomaticallyloadedintoRAMsoonafteryouturnon,or"
boot"
thecomputer.
A.applicationsoftware
B.operatingsoftware
C.shell
D.compiler
24、A()issoftwarethatlooksatanentirehigh-levelprogrambeforetranslatingitintomachinelanguage.
A.compiler
B.interpreter
C.instruction
D.process
25、TheCPUexecutesprogramscodedinalowerlevellanguagecalledthe().
A.utilityprogram
B.languagetranslator
C.machinelanguage
D.backup
26、()programsareusedtorecoverdeletedordamaged(corrupted)files.
A.Datarecovery
B.Systemcall
C.Systemcrash
D.Systemsoftware
27、Linuxisanoperatingsystemsimilarto()thatisbecomingmoreandmorepopular.
A.Windows98
B.Windows2000
C.WindowsXP
D.Unix
28、()isthenumberoftimesawaverepeatsduringaspecifictimeinterval,thatishowmanytimesitcompletesacycleinonesecond.
A.Amplitude
B.Frequency
C.Analogsignals
D.Digitalsignals
29、()isindicatedbytheheightofawavewithinagivenperiodoftime.
30、In()mode,thecommunicationisunidirectional,likeaone-waystreet.Onlyoneofthetwostationsonalinkcantransmit;
theothercanonlyreceive.
A.half-duplex
B.full-duplex
C.simplex
D.noneoftheabove
31、A()channelallowssimultaneousmessageexchangeinbothdirections.Itreallyconsistsoftwosimplexchannels,aforwardchannelandareversechannel,linkingthesamepoints.
32、A()isahighlyintelligentdevicethatsupportsconnectivitybetweenbothlikeandunlikeLANs,andbetweenLANsandWANsorMANs.
A.router
B.repeater
C.switch
D.bridge
33、()isadevicethatfunctionsasbotharouterandabridge.
A.Repeater
B.Switch
C.Gateway
D.Brouter
34、()isanacronymforlocalareanetwork.Itisagroupofcomputersandotherdevicesdispersedoverarelativelylimitedareaandconnectedbyacommunicationslink.
A.LAN
B.WAN
C.MAN
D.Noneoftheabove
35、Ina()network,allmicrocomputersandothercommunicationsdevicesareconnectedtoacentralhub,suchasafileserverorhostcomputer,usuallyviaUTP.
B.star
C.tree
D.ring
36、Ina()network,allmicrocomputersandothercommunicationdevicesareconnectedtoacontinuousloop.
37、(),theprotocolfortransferringHTMLfilesontheWeb.
A.HTML
B.ISP
C.Client
D.Server
38、(),differencebetweenthelowestandhighestfrequenciestransmittedinaparticularchannelorsystem.
B.Bandwidth
C.Bridge
D.Network
39、(),softwareusedincorporatenetworks(intranetsandextranets)topreventunauthorizedpeoplefromaccessingthenetwork.
A.Firewall
B.Modem
C.Hypertext
D.TCP
40、(),shortformodulator/demodulator,devicethatconvertsdigitalsignalsintoarepresentationofanalogform(modulation)tosendoverphonelines;
areceivingmodemthenconvertstheanalogsignalbacktoadigitalsignal(demodulation).
A.Server
B.Network
C.Modem
D.Gateway
41、The()isaworldwidesystemofcomputernetworksinwhichanyonecomputercangetinformationfrom/ortalktoanyotherconnectedcomputerusingtheTCP/IPprotocols.
A.Internet
B.WWW
C.ARPANET
D.ISP
42、()isthemessages,usuallytext,sendfromonepersontoanotherviatheInternet.
A.TCP/IP
B.Telnet
C.FTP
D.E-mail
43、()standsfor"
WorldWideWeb"
;
itisthelargeglobalcollectionofInternetserverswhichsupporthypertextdocumentscodedinHTML,andtransferredviaHTTP.
44、()isawayoftransferringfilesovertheInternetfromonecomputertoanother.
B.FTP
C.E-mail
45、The()wastheprecursortotheInternet.Developedinthelate1960'
sandearly1970'
sbytheU.S.DepartmentofDefenceasanexperimentinwide-area-networkingthatwouldsurviveanuclearwar.
A.ARPANET
B.Apple
C.Microsoft
46、()isaprotocolthatletsauserlogintoaremotecomputeranduseprogramsanddatathattheremoteownerhasmadeavailable,justasifitweretheirowncomputer.
A.FTP
C.Telnet
D.NSFNET
47、(),conversionofeitherencodedorencipheredtextintoplaintext.
A.Decrypt
B.Encryption
C.Authenticate
D.Hacker
48、(),theprocessofchangingplaintextdataintoencipheredtextthroughanalgorithm.
49、(),referringtoapersonwhobreaksintocomputersystemsforthechallengeorstealcomputerresourcesorcorruptacomputer'
sdata.
A.Hacker
B.Password
C.DES
D.Authenticate
50、(),asecretcodeassignedtoauserwhichisknownbythecomputersystem.KnowledgeofthepasswordassociatedwiththeuserIDisconsideredproofofauthorization.
51、(),executablecodethat,whenrunbysomeone,infectsotherexecutablecodeinacomputer.
A.ComputerSecurity
B.Digitalsignatures
C.Computervirus
52、(),technologicalandmanagerialproceduresappliedtocomputersystemstoensuretheavailability,integrityandconfidentialityofinformationmanagedbythecomputersystem.
53、(),whichstandsforMotionPictureExpertsGroup(MPEG)Layer3,israpidlybecomingthestandardformusictransmissionviaInternet.
A.MP3
B.MP4
C.JPEG
D.AVI
54、()isacomputertechnologythatcreatesthreedimensionalrealillusioninanartificialworld.
A.Vectorimage
B.Bitmap
D.VirtualReality
55、()(MotionPictureExpertsGroup)standardsarethemainalgorithmsusedtocompressvideos.Duetothefactthatmoviescontainbothimagesandsound,itcancompressbothaudioandvideo.
A.JPEG
B.MPEG
C.MIDI
56、()(JointPhotographicExpertsGroup),standardforcompressingcontinuous-tonestillpictures.
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