云南開放大學(xué)計(jì)算機(jī)專業(yè)英語第1-7章網(wǎng)上作業(yè)

云南開放大學(xué)計(jì)算機(jī)專業(yè)英語第一章網(wǎng)上作業(yè)一、單項(xiàng)選擇題(共5題,共100分)第1題（20分）：Somecomputersaredesignedto_________theirworkacrossseveralCPUSinamultiprocessingconfiguration.A.distributeB.distributedC.distributingD.distributes正確答案:A第2題（20分）：Onemeansbywhichthisisdoneiswithaspecialsignalcalledan_______whichcanperiodicallycausethecomputertostopexecutinginstructionswhereitwasanddosomethingelseinsteadA.pauseB.stopC.interruptD.exit正確答案:C第3題（20分）：Harddiskdrives,floppydiskdrivesand_______drivesserveasbothinputandoutputA.OpticalmagneticB.keyboardC.mouseD.opticaldisc正確答案:D第4題（20分）：Inalmostallmoderncomputers,eachmemorycellissetuptostorebinarynumbersingroupsof_______(calledabyte).Eachbyteisabletorepresent256differentnumbers(2^8=256);eitherfrom0to255or-128to+127A.OnebitB.twobitsC.eightbitsD.eightbit正確答案:C第5題（20分）：Ageneralpurposecomputerhasfourmaincomponents:thearithmeticlogicunit(ALU),_______,thememory,andtheinputandoutputdevices(collectivelytermedI/O).A.thecontrolunitB.mouseC.displayD.disc正確答案:A

云南開放大學(xué)計(jì)算機(jī)專業(yè)英語第二章網(wǎng)上作業(yè)一、閱讀理解(共5題,共100分)Ageneralpurposecomputerhasfourmaincomponents:thearithmeticlogicunit(ALU),thecontrolunit,thememory,andtheinputandoutputdevices（collectivelytermedI/O).Thesepartsareinterconnectedbybuses,oftenmadeofgroupsofwires.Insideeachofthesepartsaretrillionsofsmallelectricalcircuitswhichcanbeturnedofforonbymeansofanelectronicswitch.Eachcircuitrepresentsabit(binarydigit)ofinformationsothatwhenthecircuitisonitrepresentsa“1”,andwhenoffitrepresentsa“0”(inpositivelogicrepresentation).TheCircuitsarearrangedinlogicgatessothatoneormoreofthecircuitsmaycontrolthestateofoneormoreoftheothercircuits.Thecontrolunit,ALU,registers,andbasicI/O(andoftenotherhardwarecloselylinkedwiththese)arecollectivelyknownasacentralprocessingunit(CPU).EarlyCPUswerecomposedofmanyseparatecomponentsbutsincethemid-1970sCUPshavetypicallybeenconstructedonasingleintegratedcircuitcalledamicroprocessor.Thecontrolunit(oftencalledacontrolsystemorcentralcontroller)managesthecomputer’svariouscomponents;itreadsandinterprets,(decodes)theprograminstructions,transformingthemintoaseriesofcontrolsignalswhichactivateotherpartsofthecomputer.Controlsystemsinadvancedcomputersmaychangetheorderofsomeinstructionssoastoimproveperformance.1.（20分）Ageneralpurposecomputerhasfourmaincomponents:thearithmeticlogicunit,thecontrolunit,,andtheinputandoutputdevices.A.mouse.B.thememory.C.display.D.disc.正確答案:B2.（20分）Ifthecircuitison,itrepresentsa(inpositivelogicrepresentation)A.“1”B.”0”C.”on”D.”off”正確答案:A3.（20分）Thecentralprocessingunitiscomposedofcomponents.A.threeB.six.C.four.D.five正確答案:C4.（20分）thecontrolunitcannotA.readtheprograminstructionsB.transformtheprograminstructionsintoaseriesofcontrolsignalsC.printdocu-mentsD.interprettheprograminstructions正確答案:C5.（20分）ThecontrolunitiscalledA.acentralsystemB.aCPUC.acontrolcircuitD.acontrolsystem正確答案:D

云南開放大學(xué)計(jì)算機(jī)專業(yè)英語第三章網(wǎng)上作業(yè)一、單項(xiàng)選擇題(共5題,共100分)第1題（20分）：Verylong,complexexpres-sionsinprogramaredifficulttowritecorrectlyanddifficultto_____.A.defendB.detectC.defaultD.debug正確答案:D第2題（20分）：____isthestudyoftheprinciplesofvalidreasoningandinference,aswellasofconsistency,soundness,andcompleteness.A.GraphtheoryB.LogicC.TopologyD.Operationresearch正確答案:B第3題（20分）：The________storageareathatyoucanusetocopyormoveselectedtextorobjectamongapplications.A.exponentB.orderC.temporaryD.superior正確答案:C第4題（20分）：Softwaredesignisa_____process.ItrequiresacertainmountedofflaironthepartofthedesignerA.createB.createdC.creatingD.creative正確答案:D第5題（20分）：InCLanguage,a______isaseriesofcharactersenclosedindoublequotes.A.matrixB.stringC.programD.tream正確答案:B

云南開放大學(xué)計(jì)算機(jī)專業(yè)英語第四章網(wǎng)上作業(yè)一、閱讀理解(共5題,共100分)Asoftwareprocessisasetofactivitiesthatleadstotheproductionofasoftwareproduct.TheseactivitiesmayinvolvethedevelopmentofsoftwarefromscratchinastandardprogramminglanguagelikeJavaorC.Increasingly,however,newsoftwareisdevelopedbyextendingandmodifyingexistingsystemsandbyconfiguringandintegratingoff-the-shelfsoftwareorsystemcomponents.Softwareprocessesarecomplexand,likeallintellectualandcreativeprocesses,relyonpeoplemakingdecisionsandjudgments.Becauseoftheneedforjudgmentandcreativity,attemptstoautomatesoftwareprocesseshavemetwithlimitedsuccess.Computer-aidedsoftwareengineering(CASE)toolscansupportsomeprocessactivities.However,thereisnopossibility,atleastinthenextfewyears,ofmoreextensiveautomationwheresoftwaretakesovercreativedesignfromtheengineersinvolvedinthesoftwareprocess.Althoughtherearemanysoftwareprocesses,somefundamentalactivitiesarecommontoallsoftwareprocesses:1).SoftwarespecificationThefunctionalityofthesoftwareandconstraintsonitsoperationmustbedefined.2).Softwaredesignandimplement-ationThesoftwaretomeetthespecificationmustbeproduced.3).SoftwarevalidationThesoftwaremustbevalidatedtoensurethatitdoeswhatthecustomerwants.4).SoftwareevolutionThesoftwaremustevolvetomeetchangingcustomerNeeds.Althoughthereisno‘ideal’softwareprocess,thereisscopeforimprovingthesoftwareprocessinmanyorganizations.Processesmayincludeoutdatedtechniquesormaynottakeadvantageofthebestpracticeinindustrialsoftwareengineering.Indeed,manyorganizationsstilldonottakeadvantageofsoftwareengineeringmethodsintheirsoftwaredevelopment.1.（20分）Asoftwareprocessis.A.softwareproduct.B.asetofactivities.C.astandardprogramminglanguage.D.anexistingsystem.正確答案:B2.（20分）Softwareprocesses.A.aretoocomplexandintellectualtobedevelopedbyComputer-aidedsoftwareengineering(CASE)tools.B.arecomplexandintellectualenoughtobedevelopedbyComputer-aidedsoftwareengineering(CASE)tools.C.arerelyonComputer-aidedsoftwareengineering(CASE)tools.D.don’tdependonthepeoplemakingdecisionsandjudgments正確答案:A3.（20分）softwareprocessesusuallyincludeactivities.A.twoB.threeC.four.D.five正確答案:C4.（20分）ImprovingthesoftwareprocessinmanyorganizationsisA.unnecessaryB.idealC.outdatedD.limited正確答案:D5.（20分）Softwaredesignandimplementat-ionmeansthatA.thefunctionalityofthesoftwareandconstraintsonitsoperationmustbedefinedB.thesoftwaretomeetthespecificationmustbeproduced.C.thesoftwaremustbevalidatedtoensurethatitdoeswhatthecustomerwants.D.thesoftwaremustevolvetomeetchangingcustomerNeeds.正確答案:B

云南開放大學(xué)計(jì)算機(jī)專業(yè)英語第五章網(wǎng)上作業(yè)一、單項(xiàng)選擇題(共5題,共100分)第1題（20分）：What‘sthesystemwasusedinMySQL.A.TheMySQLdatabasesystemusesaclient-serverarchitectureB.TheMySQLdatabasesystemusesapoint-to-pointarchitecture.C.TheMySQLdatabasesystemusesbothclient-serveandpoint-to-pointarchitecture.D.Notmention.正確答案:A第2題（20分）：WhichpartactuallymanipulatestheMySQLdatabase?A.TheseverB.TheclientC.TheseverandclientD.Notmention正確答案:A第3題（20分）：Wherecouldaclientprogramwasinstalled?.A.LocallyonyourmachineB.OtherplacewherehavenetC.ThemachineneartheserverD.Nomention正確答案:B第4題（20分）：Whichisnotmysql’scapabilitie?A.Startingandstoppingmysql.B.CancelingandeditingstatementsC.SpecifyingconnectionparametersandusingoptionfilesD.ManipulatestheMySQLdatabase正確答案:D第5題（20分）：HowtheMySQLexecutestatements?A.inmysqlB.inclientC.inserverD.Bothinclientandserver.正確答案:C

云南開放大學(xué)計(jì)算機(jī)專業(yè)英語第六章網(wǎng)上作業(yè)一、閱讀理解(共5題,共100分)Oneofthemoresurprisingdevelopmentsofthelastfewdecadeshasbeentheascendanceofcomputerstoapositionofprevalenceinhumanaffairs.Todaytherearemorecomputersinourhomesandofficesthantherearepeoplewholiveandworkinthem.Yetmanyofthesecomputersarenotrecognizedassuchbytheirusers.Inthisunit,I’llexplainwhatembeddedsystemsareandwheretheyarefound.Iwillalsointroducethesubjectofembeddedprogramming,explainwhyIhaveselectedCandC++asthelanguagesforthisbook,anddescribethehardwareusedintheexamples.Anembeddedsystemisacombinationofcomputerhardwareandsoftware,andperhapsadditionalmechanicalorotherparts,designedtoperformaspecificfunction.Agoodexampleisthemicrowaveoven.Almosteveryhouseholdhasone,andtensofmillionsofthemareusedeveryday,butveryfewpeoplerealizethataprocessorandsoftwareareinvolvedinthepreparationoftheirlunchordinner.Thisisindirectcontrasttothepersonalcomputerinthefamilyroom.Ittooiscomprisedofcomputerhardwareandsoftwareandmechanicalcomponents(diskdrives,forexample).However,apersonalcomputerisnotdesignedtoperformaspecificfunction.Rather,itisabletodomanydifferentthings.Manypeopleusethetermgeneral-purposecomputertomakethisdistinctionclear.Asshipped,ageneral-purposecomputerisablankslate;themanufacturerdoesnotknowwhatthecustomerwilldowithit.Onecustomermayuseitforanetworkfileserver,anothermayuseitexclusivelyforplayinggames,andathirdmayuseittowritethenextgreatAmericannovel.1.（20分）Today,computersinourhomesandofficesA.areasmanyaspeoplewholiveandworkinthem.B.aremorethanpeoplewholiveandworkinthem.C.arelessthanpeoplewholiveandworkinthem.D.areasmuchaspeoplewholiveandworkinthem.正確答案:B2.（20分）Anembeddedsystemis.A.indinner.B.inlunch.C.inamicrowaveoven.D.incomputerhardware正確答案:C3.（20分）Anembeddedsystemisdesignedto.A.performaspecificfunctionB.performmanydifferentthingsC.makethedistinctionclearD.program正確答案:A4.（20分）ApersonalcomputercannotA.beusedasanetworkfileserverB.beusedforplayinggamesC.beusedtowritethenextgreatAme