unit 3 computer_0

精品文档2016全新精品资料全新公文范文全程指导写作独家原创1/29UNIT3COMPUTERUNIT3COMPUTERPARTONETEACHINGDESIGN第一部分教学设计PERIOD1ASAMPLELESSONPLANFORREADINGWHOAMIAIMSTOTALKABOUTCOMPUTERTOREADABOUTCOMPUTERPROCEDURESIWARMINGUPWARMINGUPBYTALKINGABOUTCOMPUTERLOOKATTHEPICTURESONPAGE17WHATARETHEYWHATDOTHEYHAVEINCOMMONYES,THEYARECOMPUTERSTHENWHATISACOMPUTERACOMPUTERISAMACHINEWHICHSTORESKNOWLEDGEINITSMEMORYANDDOESCALCULATIONSONTHATKNOWLEDGETHISKNOWLEDGEISSTOREDINSYMBOLSITISCALLEDDATAACOMPUTERUSUALLYHASAMONITORTOSHOWRESULTSHOWEVER,SOMECOMPUTERSCANSPEAKTHESECOMPUTERSCANBEUSEDFORVOICEMAIL计算机室ACOMPUTERFREQUENTLYREQUIRESABOOTDEVICETHEBOOTDEVIC精品文档2016全新精品资料全新公文范文全程指导写作独家原创2/29ECONTAINSTHECOMPUTERSOPERATINGSYSTEMANDDATACOMPUTERPROGRAMSCANBEINSTALLEDONTOACOMPUTERSOMEPEOPLETHINKTHATCOMPUTERSARELESSUSEFULIFTHEYDONOTHAVEACCESSTOTHEINTERNETTHEYTHINKTHISBECAUSETHEINTERNETALLOWSTHECOMPUTERSTOSENDANDRECEIVEDATAANDEMAILACROSSTHEWORLD曙光3000巨型计算机ACOMPUTERISNOWALMOSTALWAYSANELECTRONICDEVICEITUSUALLYCONTAINSMATERIALSWHICHARETOXICTHESEMATERIALSWILLBECOMETOXICWASTEWHENDISPOSEDOFWHENANEWCOMPUTERISPURCHASEDINSOMEPLACES,LAWSREQUIRETHATTHECOSTOFITSWASTEMANAGEMENTMUSTALSOBEPAIDFORTHISISCALLEDPRODUCTSTEWARDSHIPINSOMECOUNTRIESOLDCOMPUTERSARERECYCLEDMELTEDDOWNTOGETGOLDANDOTHERMETALSTHISISDANGEROUS,BECAUSETHISPROCEDURERELEASESTHETOXICWASTEINTOTHEWATERANDSOILCOMPUTERSBECOMEOBSOLETEQUICKLYVERYOFTENTHEYAREGIVENAWAYANDNEWONESREPLACETHEMWITHINTWOORTHREEYEARSTHISMAKESTHEPROBLEMWORSECOMPUTERRECYCLINGISTHUSCOMMONMANYPROJECTSTRYTOSENDWORKINGCOMPUTERSTODEVELOPINGNAT精品文档2016全新精品资料全新公文范文全程指导写作独家原创3/29IONSSOTHEYCANBEREUSEDANDWILLNOTBECOMEWASTEASQUICKLYCOMPUTERJARGON计算机行话COMPUTERJARGONMEANSWORDSTODOWITHCOMPUTERSANDSURROUNDINGTOPICSKNOWINGWHATTHESEWORDSMEANCANHELPYOUKNOWMOREABOUTCOMPUTERSSOMEPEOPLEUSETHESEWORDSTOIMPRESSOTHERPEOPLEALSOKNOWNASBUZZWORDSEXAMPLESOFJARGONBITTHESMALLESTDATAUNIT,CANEITHERBEA“0”ORA“1”BYTEUNITOFDATASEEALSOKILOBYTE,MEGABYTE,GIGABYTEANDNIBBLECPUCENTRALPROCESSINGUNIT,ANOTHERNAMEFORPROCESSORDATAINFORMATIONSTOREDONACOMPUTERDISKAPLACETOSTOREDATAEMAILELECTRONICMAILGHZGIGAHERTZUSEDOFTENINCORRECTLYTODESCRIBETHESPEEDOFAPROCESSORBUTWITHSOME24GHZPROCESSORSFASTERTHAN36GHZONES,ITISCLEARTHATITISJUSTASALESMANTRICKLOADGETDATAFROMADISK精品文档2016全新精品资料全新公文范文全程指导写作独家原创4/29NIBBLEHALFABYTESAVEPUTDATAONADISKRAMRANDOMACCESSMEMORY随机存取存储器,THEMORETHEBETTERUSBUNIVERSALSERIALBUS（通用串行总线，一种简化了插接多种附件的薄型插座）WWWWORLDWIDEWEB,PARTOFTHEINTERNETIIPREREADING1QUESTIONINGANDANSWERINGWHATDOYOUKNOWABOUTCOMPUTERELECTRONICMACHINECAPABLEOFPERFORMINGCALCULATIONSANDOTHERMANIPULATIONSOFVARIOUSTYPESOFDATA,UNDERTHECONTROLOFASTOREDSETOFINSTRUCTIONSTHEMACHINEITSELFISTHEHARDWARETHEINSTRUCTIONSARETHEPROGRAMORSOFTWAREDEPENDINGUPONSIZE,COMPUTERSARECALLEDMAINFRAMES,MINICOMPUTERS,ANDMICROCOMPUTERSMICROCOMPUTERSINCLUDEDESKTOPANDPORTABLEPERSONALCOMPUTERSAMULTIFUNCTIONELECTRONICDEVICETHATCANEXECUTEINSTRUCTIONSTOPERFORMATASKADEVICETHATACCEPTSINFORMATION,PROCESSESIT,ANDSUPPLIESANOUTPUTACOMPUTERUSUALLYCONTAINSMEMORY,ACONTROLUNIT,ARITHMETICANDLOGICALUNITS,ANDAMEANSFORINPUTAN精品文档2016全新精品资料全新公文范文全程指导写作独家原创5/29DOUTPUTAPROGRAMMABLEHARDWARECOMPONENTTHATISCONTROLLEDBYINTERNALLYSTOREDPROGRAMSANDTHATCANPERFORMSUBSTANTIALCOMPUTATIONSINCLUDINGARITHMETICANDLOGICOPERATIONSWITHOUTHUMANINTERVENTIONACOMPUTERTYPICALLYCONSISTSOFONEORMOREPROCESSINGUNITS,MEMORYUNITS,ANDASSOCIATEDPERIPHERALINPUTANDOUTPUTDEVICESRELATEDTOAUTOMATIONANDELECTRONICDATAPROCESSINGTHELIBRARYOFCONGRESSCOMMONLYCLASSESMOSTCOMPUTERRELATEDBOOKSINHF5548,QA7576,Z52,T385,ANDSOMETKRANGESAMACHINEFORPERFORMINGCALCULATIONSAUTOMATICALLYCALCULATORANEXPERTATCALCULATIONORATOPERATINGCALCULATINGMACHINESACOMPUTERISADEVICEORMACHINEFORMAKINGCALCULATIONSORCONTROLLINGOPERATIONSTHATAREEXPRESSIBLEINNUMERICALORLOGICALTERMSCOMPUTERSARECONSTRUCTEDFROMCOMPONENTSTHATPERFORMSIMPLEWELLDEFINEDFUNCTIONSTHECOMPLEXINTERACTIONSOFTHESECOMPONENTSENDOWCOMPUTERSWITHTHEABILITYTOPROCESSINFORMATI精品文档2016全新精品资料全新公文范文全程指导写作独家原创6/29ONIFCORRECTLYCONFIGUREDUSUALLYBY,PROGRAMMINGACOMPUTERCANBEMADETOREPRESENTSOMEASPECTOFAPROBLEMORPARTOFASYSTEMIFACOMPUTERCONFIGUREDINTHISWAYISGIVE2DISCUSSINGANDSHARINGHOWHAVECOMPUTERSCHANGEDOURLIVESSOMEDAYSOON,IFYOUHAVENTALREADY,YOURELIKELYTOPLUGINTOTHECOMPUTERNETWORKNATIONGROWINGINOURMIDSTCOMPUTERTERMINALS,ORSMALLCOMPUTERSCONNECTEDVIAMODEMAMODULATOR/DEMODULATORCIRCUITFORENCODING/DECODINGCOMPUTERCHATTERTOORDINARYTELEPHONELINES,SHOULDBEASUBIQUITOUSASTHETELEPHONEITSELFTHEYREAMUCHMOREUSEFULANDHUMANETOOLTHANTHEPHONE,ANDWITHCORPORATEAMERICABEHINDTHEMTHENETWORKSWILLBEEVERYWHERECHANGINGOURLIVESMORETHANANYTECHNOLOGYSINCETHEAUTOMOBILEJOININGACOMPUTERNETWORKISTHESAMEASJOININGACOMMUNITYSMALLSYSTEMSARELIKEVILLAGES,WHERENEWMEMBERSAREFORMALLYWELCOMEDTHELARGERNETWORKS,THESOURCEANDCOMPUSERVE,FOREXAMPLE,ARECITIESANONYMOUS,FULLOFLIFEANDEVENTS,BUTDIFFICULTTOFITINTO精品文档2016全新精品资料全新公文范文全程指导写作独家原创7/29IIIREADING1LISTENINGANDREADINGTOTHERECORDINGOFTHETEXTWHOAMITURNTOPAGE18ANDLISTENANDREADTOTHERECORDINGOFTHETEXTPAYATTENTIONTOTHEPAUSES,PRONUNCIATIONANDINTONATIONOFTHENATIVEREADER2READINGALOUDANDUNDERLININGEXPRESSIONSNOWWEARETOR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