资源描述：
《java学习课件英文版第一课.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、Chapter1–IntroductiontoComputers,theInternet,andtheWebOutline1.1Introduction 1.2WhatIsaComputer? 1.3ComputerOrganization 1.4EvolutionofOperatingSystems 1.5Personal,DistributedandClient/ServerComputing 1.6MachineLanguages,AssemblyLanguagesandHigh-LevelLanguages 1.7HistoryofC++ 1.8Histo
2、ryofJava 1.9JavaClassLibraries 1.10FORTRAN,COBOL,PascalandAda1.11BASIC,VisualBasic,VisualC++,C#and.NET1.12TheInternetandtheWorldWideWeb 1.13BasicsofaTypicalJavaEnvironmentChapter1–IntroductiontoComputers,theInternet,andtheWeb1.14GeneralNotesaboutJavaandThisBook 1.15ThinkingAboutObject
3、s:IntroductiontoObjectTechnologyandtheUnifiedModelingLanguage 1.16DiscoveringDesignPatterns:Introduction1.1IntroductionJavaHowtoProgram,FifthEditionJava2StandardEditionObject-orientedprogramming1.2WhatIsaComputer?ComputerPerformscomputationsandmakeslogicaldecisionsMillions/billionstim
4、esfasterthanhumanbeingsComputerprogramsSetsofinstructionsforwhichcomputerprocessesdataHardwarePhysicaldevicesofcomputersystemSoftwareProgramsthatrunoncomputers1.3ComputerOrganizationSixlogicalunitsofcomputersystemInputunitMouse,keyboardOutputunitPrinter,monitor,audiospeakersMemoryunit
5、RetainsinputandprocessedinformationArithmeticandlogicunit(ALU)PerformscalculationsCentralprocessingunit(CPU)SupervisesoperationofotherdevicesSecondarystorageunitHarddrives,floppydrives1.4EvolutionofOperatingSystemsBatchprocessingOnejob(task)atatimeOperatingsystemsdevelopedProgramstoma
6、kecomputersmoreconvenienttouseSwitchjobseasierMultiprogramming“Simultaneous”jobsTimesharingoperatingsystems1.5Personal,DistributedandClient/ServerComputingPersonalcomputingComputersforpersonaluseDistributedcomputingComputingperformedamongseveralcomputersClient/servercomputingServersof
7、fercommonstoreofprogramsanddataClientsaccessprogramsanddatafromserver1.6MachineLanguages,AssemblyLanguagesandHigh-LevelLanguagesMachinelanguage“Naturallanguage”ofcomputercomponentMachinedependentAssemblylanguageEnglish-likeabbreviationsrepresentcomputeroperationsTranslatorprogramsconv
8、ertto
