计算机文化真题.docx

计算机文化真题.docx

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计算机文化真题

IntroductiontoComputers（ALL）

True/False

Indicatewhetherthesentenceorstatementistrueorfalse.

1.Thepriceofamicrocomputertypicallystartsatseveralhundredthousanddollarsandcaneasilyexceed$1million.

____2.Thesystemunitisthecasethatholdsthemaincircuitboards,microprocessor,powersupply,andharddrive.

____3.AnationalISPisprobablybetterthanalocalISPforpeoplewhotravelfrequently.

____4.EveryWebpagehasauniqueaddresscalledaURL（UniformResourceLocator）.

____5.Web-basede-mailgivesyoutheoptionofdownloadingyourmailorleavingitontheserver.

____6.Youcanusuallyidentifythemicroprocessorwhenlookinginsideacomputer,asitistheonlychiponthemotherboard.

____7.Cachesizeisnotofparticularsignificancetoconsumersbecauseitisnotconfigurable.

____8.Atrackballlookslikethetipofaneraserembeddedinthekeyboardofanotebookcomputer.

____9.User-executableprogramfileshave.exefilenameextensions.

____10.Instructionswritteninmachinelanguagemustbetranslatedintoahigh-levellanguagebeforeacomputercanusethem.

____11.TheWindowsoperatingsystemgetsitsnamefromtherectangularworkareasthatappearonthescreen-baseddesktop.

____12.Ifafilehastherightextensionforaparticularapplicationprogram,youwillseeitinthelistoffilesthatyoucanopenwiththatsoftware.

____13.Anoperatingsystemmaintainsalistoffilescalledatableforeachstoragedisk,tape,CD,orDVD.

____14.Today,justabouteverycomputerusesoneormoremicroprocessorsasitsCPU.

____15.Atabletcomputerissimilarinsizetoanotebookcomputer,butfeaturesatouch-sensitivescreenthatcanbeusedforinputinsteadofakeyboard.

____16.Ahandheldcomputer,withadd-ons,ispowerfulenoughtohandleallofthetasksperformedbyadesktopcomputer.

____17.Inexpensiveadd-onstohandheldcomputersmakeitpossibletosendandreceivee-mail.

____18.Applicationsoftwareisasetofcomputerprogramsthathelpsapersoncarryoutatask.

____19.CommunicationbetweenallofthedifferentdevicesontheInternetismadepossiblebyHTTP（HypertextTransferProtocol）,astandardsetofprotocolsforelectronicallyaddressingandtransmittingdata.

____20.ApasswordisaseriesofcharactersthatverifiestheuserIDandissimilartoaPIN.

____21.ThecomputersandsoftwarethatstoreanddistributeWebpagesarecalledWebclients.

____22.Anyfilethattravelswithane-mailmessageiscalledane-mailMIME.

____23.MostpersonalcomputersuseUnicode,althoughExtendedASCIIcodeisbecomingincreasinglypopular.

____24.Theprefixtera-meanstrillion.

____25.Mostoftheprocessorsintoday'sMacsuseRISCtechnology.

____26.InteliscontinuallyupgradingitslineofPentiumprocessors.

____27.Anopticaldisk,suchasaCD,isnotsusceptibletohumidity,fingerprints,dust,magnets,orspilledsoftdrinks,anditsusefullifeisestimatedatmorethan200years.

____28.Atrackballlookslikethetipofaneraserembeddedinthekeyboardofanotebookcomputer.

____29.Onmostmonitors,theviewableimagedoesnotstretchtotheedgeofthescreen.

____30.Fewoftoday'sdesktopoperatingsystemsprovidemultitaskingcapabilities.

____31.Youshouldtrytoavoidstoringyourdatafilesinsubdirectoriesandshouldinsteadstorethemintherootdirectoryofyourharddisk.

____32.TheSaveoptionontheFilemenusavesthelatestversionofafileunderitscurrentnameandatitscurrentlocation.

____33.InWindowsExplorer,adeviceiconcanbeopenedbyclickingdirectlyontheicon,ratherthanontheplussign.

____34.TheFileAllocationTablekeepstrackofalistofclustersandwhichareemptyandwhichholddata.

____35.Whenafileisdeleted,theclustersthatcontainedthefilearerewritten.

____36.Virustriggereventsareoftenkeyedtoaspecificdate.

____37.DenialofServiceattacksoccurwhenuselessnetworktrafficoverwhelmsthenetwork’sprocessingcapabilityandessentiallybringsallcommunicationstoahalt.

____38.Bogusviruse-mailmessagesusuallycontainalonglistofpeopleintheTo:

andCc:

boxes.

____39.AbootdiskisafloppydiskorCDthatcontainstheoperatingsystemfilesneededtostartyourcomputerwithoutaccessingtheharddisk.

____40.Unlikefiber-opticcables,twistedpairandcoaxialcablesdonotconductortransmitelectricalsignals.

____41.Fiber-opticcableisabundleofextremelythintubesofglass.

____42.Aparcelswitchingnetworkdividesmessagesintosmallparcelsandhandlesthemona“firstcome,firstserved”basis.

____43.Mostdatacommunicationssystemsimplementsynchronousprotocol.

____44.AnexampleofaNetworkServiceProvider（NSP）isAOL.

____45.IPbreaksamessageorfileintopackets.

____46.IEandFirefoxupdatesonlycost$10ayear.

____47.Thecurrenttrendistousetheterm"PDF"torefertoanyhelperapplicationorplug-inthathelpsabrowserdisplayaparticularfileformat.

____48.Atexteditorissimilartowordprocessingsoftware.

____49.Javaappletsaresometimesblockedbynetworkfirewalls.

____50.Javaappletsarenotallowedtoopen,modify,delete,orcreatefilesonyourcomputer.

____51.JavaScriptmustbecompiledintobytecode,butJavaappletsdonotneedtobecompiled.

____52.ActiveXissupportedbyNetscape,Linux,andMacOS,butnotMicrosoftInternetExplorer.

____53.Youcanuseascannertoconvertaprintedimageintoabitmapgraphic.

____54.Acardreaderactsjustlikeanexternaldiskdrivebytreatingyourmemorycardslikefloppydisks.

____55.Itiseasiertoeditanobjectinavectorgraphicthananobjectinabitmap.

____56.OnWebpages,vectorgraphicsappearwiththesameconsistentqualityonallcomputerscreens.

____57.Videoiseasiertoeditifyoudivideitintoseveralfiles,eachcontainingaone-to-twominutesegmentoffootage.

____58.SomePDAsandsmartphonescanbeconfiguredtoplaydigitalvideos,includingmovietrailers,TVshows,andevenfeature-lengthmovies.

____59.Becauseofitscost,aworkstationisoftendedicatedtodesigntasks,andisnotusedfortypicalmicrocomputerapplications.

____60.AWANprovidesconnectivitywithinalimitedgeographicalarea,usuallyspreadoverseveralbuildings.

____61.Thecoaxialcablethatprovidesyouwithmorethan100channelsofcableTVhasalowerbandwidththanyourhometelephoneline.

____62.TheDomainNameSystemisadatabasestoredonthemainInternetcomputer.

____63.HTMLtagsworkinpairs.

____64.Thecurrenttrendistousetheterm"PDF"torefertoanyhelperapplicationorplug-inthathelpsabrowserdisplayaparticularfileformat.

____65.InanHTTPcommunication,yourbrowseropensasocket,connectstoasimilaropensocketattheWebserver,andissuesacommand,suchas"sendmeanHTMLdocument."

____66.Ifyouturnoffcookies,youprobablywon’tbeabletomakeonlinepurchases.

____67.Cookiesuseyournameforidentificationpurposes.

____68.Frameshavefallenoutoffavor--probablybecausesomeWebdesignerslitteredWebpageswithframesthatremainedonthescreenevenaftervisitorslinkedtoothersites.

____69.Thephotosthatyoutakewithadigitalcameraarestoredinthecamera'smemorymodulesuntilyoutransferthemtoyourcomputer.

____70.Bitmapsresizebetterthanvectorgraphics.

____71.Bitmapsgenerallyrequirelessstoragespacethanvectorimages.

ModifiedTrue/False

Indicatewhetherthesentenceorstatementistrueorfalse.Iffalse,changetheidentifiedwordorphrasetomakethesentenceorstatementtrue.

____1.TheALUusesregisterstoholddatathatisbeingprocessed._________________________

____2.A（n）laserprinterhasanozzle-likeprintheadthatspraysinkontopapertoformcharactersandgraphics._________________________

____3.Theself-installingexecutablefileautomaticallyunzipsitselfandstartsthesetupprogram._________________________

____4.Asoftwarelicenseisalegalcontractthatdefinesthewaysinwhichyoumayuseacomputerprogram._________________________

____5.Afilenameextensionisusuallyrelatedtothefileschema._________________________

____6.Avirusverificationisusuallyasectionofthevirusprogramthatoutlinesauniqueseriesofinstructions._________________________

____7.TheRegistryisanimportantgroupoffilesusedbytheWindowsoperatingsystemtostoreconfigurationinformationaboutallofthedevicesandsoftwareinstalledonacomputersystem._________________________

____8.AlocalareanetworkthatusesTCP/IPiscalleda（n）intranet.________________________

____9.Downstreamtransmissionreferstothedatathatyousend._________________________

____10.AWebpagecanbestoredasafilecalleda（n）ISPdocument._________________________

____11.Javaisahigh-levelprogramminglanguagedevelopedbySunMicrosystemsthathasbecomeapopularprogrammingtoolforWeb-basedprojects._________________________

____12.SmallJavaapplicationsarecallJavacontrols._________________________

____13.Whenyousaveafile,youmustprovideitwithavalidfilenamethatadherestospecificrules,referredtoasfile-namingrubrics._________________________

____14.Someoperatingsystemscontainalistofextendedwordsthatareusedascommandsorspecialidentifiers._________________________

____15.Afilespecificationisalsosometimesknownasa（n）route._________________________

____16.Gradientscanbeusedtocreateshadingandthree-dimensionaleffects._________________________

____17.Likevectorgraphics,3-Dgraphicsarestoredasasetofinstructions.____________