unit 3 computer 教学设计

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1/21UNIT3COMPUTER教学设计UNIT3COMPUTER教学设计PERIOD1WARMINGUPANDREADINGTEACHINGAIMSTOTALKABOUTCOMPUTERTOREADABOUTCOMPUTERPROCEDURESIWARMINGUPWARMINGUPBYTALKINGABOUTCOMPUTERLOOKATTHEPICTURESONPAGE17WHATARETHEYWHATDOTHEYHAVEINCOMMONYES,THEYARECOMPUTERSTHENWHATISACOMPUTERACOMPUTERISAMACHINEWHICHSTORESKNOWLEDGEINITSMEMORYANDDOESCALCULATIONSONTHATKNOWLEDGETHISKNOWLEDGEISSTOREDINSYMBOLSITISCALLEDDATAACOMPUTERUSUALLYHASAMONITORTOSHOWRESULTSHOWEVER,SOMECOMPUTERSCANSPEAKTHESECOMPUTERSCANBEUSEDFORVOICEMAIL计算机室ACOMPUTERFREQUENTLYREQUIRESABOOTDEVICETHEBOOTDEVICECONTAINSTHECOMPUTERSOPERATINGSYSTEMANDDATACOMPUTERPROGRAMSCANBEINSTALLEDONTOACOMPUTERSOMEPEOPLETH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2/21INKTHATCOMPUTERSARELESSUSEFULIFTHEYDONOTHAVEACCESSTOTHEINTERNETTHEYTHINKTHISBECAUSETHEINTERNETALLOWSTHECOMPUTERSTOSENDANDRECEIVEDATAANDEMAILACROSSTHEWORLD曙光3000巨型计算机ACOMPUTERISNOWALMOSTALWAYSANELECTRONICDEVICEITUSUALLYCONTAINSMATERIALSWHICHARETOXICTHESEMATERIALSWILLBECOMETOXICWASTEWHENDISPOSEDOFWHENANEWCOMPUTERISPURCHASEDINSOMEPLACES,LAWSREQUIRETHATTHECOSTOFITSWASTEMANAGEMENTMUSTALSOBEPAIDFORTHISISCALLEDPRODUCTSTEWARDSHIPINSOMECOUNTRIESOLDCOMPUTERSARERECYCLEDMELTEDDOWNTOGETGOLDANDOTHERMETALSTHISISDANGEROUS,BECAUSETHISPROCEDURERELEASESTHETOXICWASTEINTOTHEWATERANDSOILCOMPUTERSBECOMEOBSOLETEQUICKLYVERYOFTENTHEYAREGIVENAWAYANDNEWONESREPLACETHEMWITHINTWOORTHREEYEARSTHISMAKESTHEPROBLEMWORSECOMPUTERRECYCLINGISTHUSCOMMONMANYPROJECTSTRYTOSENDWORKINGCOMPUTERSTODEVELOPINGNATIONSSOTHEYCANBEREUSEDANDWILLNOTBECOMEWASTEASQUICKLY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3/21COMPUTERJARGON计算机行话COMPUTERJARGONMEANSWORDSTODOWITHCOMPUTERSANDSURROUNDINGTOPICSKNOWINGWHATTHESEWORDSMEANCANHELPYOUKNOWMOREABOUTCOMPUTERSSOMEPEOPLEUSETHESEWORDSTOIMPRESSOTHERPEOPLEALSOKNOWNASBUZZWORDSEXAMPLESOFJARGONBITTHESMALLESTDATAUNIT,CANEITHERBEA“0”ORA“1”BYTEUNITOFDATASEEALSOKILOBYTE,MEGABYTE,GIGABYTEANDNIBBLECPUCENTRALPROCESSINGUNIT,ANOTHERNAMEFORPROCESSORDATAINFORMATIONSTOREDONACOMPUTERDISKAPLACETOSTOREDATAEMAILELECTRONICMAILGHZGIGAHERTZUSEDOFTENINCORRECTLYTODESCRIBETHESPEEDOFAPROCESSORBUTWITHSOME24GHZPROCESSORSFASTERTHAN36GHZONES,ITISCLEARTHATITISJUSTASALESMANTRICKLOADGETDATAFROMADISKNIBBLEHALFABYTESAVEPUTDATAONADISK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4/21RAMRANDOMACCESSMEMORY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,ANDAMEANSFORINPUTANDOUTPUT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5/21APROGRAMMABLEHARDWARECOMPONENTTHATISCONTROLLEDBYINTERNALLYSTOREDPROGRAMSANDTHATCANPERFORMSUBSTANTIALCOMPUTATIONSINCLUDINGARITHMETICANDLOGICOPERATIONSWITHOUTHUMANINTERVENTIONACOMPUTERTYPICALLYCONSISTSOFONEORMOREPROCESSINGUNITS,MEMORYUNITS,ANDASSOCIATEDPERIPHERALINPUTANDOUTPUTDEVICESRELATEDTOAUTOMATIONANDELECTRONICDATAPROCESSINGTHELIBRARYOFCONGRESSCOMMONLYCLASSESMOSTCOMPUTERRELATEDBOOKSINHF5548,QA7576,Z52,T385,ANDSOMETKRANGESAMACHINEFORPERFORMINGCALCULATIONSAUTOMATICALLYCALCULATORANEXPERTATCALCULATIONORATOPERATINGCALCULATINGMACHINESACOMPUTERISADEVICEORMACHINEFORMAKINGCALCULATIONSORCONTROLLINGOPERATIONSTHATAREEXPRESSIBLEINNUMERICALORLOGICALTERMSCOMPUTERSARECONSTRUCTEDFROMCOMPONENTSTHATPERFORMSIMPLEWELLDEFINEDFUNCTIONSTHECOMPLEXINTERACTIONSOFTHESECOMPONENTSENDOWCOMPUTERSWITHTHEABILITYTOPROCESSINFORMATIONIFCORRECTLYCONFIGUREDUSUALLYBY,PROGRAMMINGACOMPUTERCANBEMADETOREPRESENTSOMEASPECTOFAPROBLEMORPART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6/21OFASYSTEMIFACOMPUTERCONFIGUREDINTHISWAYISGIVE2DISCUSSINGANDSHARINGHOWHAVECOMPUTERSCHANGEDOURLIVESSOMEDAYSOON,IFYOUHAVENTALREADY,YOURELIKELYTOPLUGINTOTHECOMPUTERNETWORKNATIONGROWINGINOURMIDSTCOMPUTERTERMINALS,ORSMALLCOMPUTERSCONNECTEDVIAMODEMAMODULATOR/DEMODULATORCIRCUITFORENCODING/DECODINGCOMPUTERCHATTERTOORDINARYTELEPHONELINES,SHOULDBEASUBIQUITOUSASTHETELEPHONEITSELFTHEYREAMUCHMOREUSEFULANDHUMANETOOLTHANTHEPHONE,ANDWITHCORPORATEAMERICABEHINDTHEMTHENETWORKSWILLBEEVERYWHERECHANGINGOURLIVESMORETHANANYTECHNOLOGYSINCETHEAUTOMOBILEJOININGACOMPUTERNETWORKISTHESAMEASJOININGACOMMUNITYSMALLSYSTEMSARELIKEVILLAGES,WHERENEWMEMBERSAREFORMALLYWELCOMEDTHELARGERNETWORKS,THESOURCEANDCOMPUSERVE,FOREXAMPLE,ARECITIESANONYMOUS,FULLOFLIFEANDEVENTS,BUTDIFFICULTTOFITINTOIIIREADING1LISTENINGANDREADINGTOTHERECORDINGOFTHETEXTWHOAMI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7/21TURNTOPAGE18ANDLISTENANDREADTOTHERECORDINGOFTHETEXTPAYATTENTIONTOTHEPAUSES,PRONUNCIATIONANDINTONATIONOFTHENATIVEREADER2READINGALOUDANDUNDERLININGEXPRESSIONSNOWWEARETOREADTHETEXTONCEAGAINANDUNDER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