oleary2008cecomplete_chapter5 system software

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1、Chapter5SystemSoftware5-2DescribethedifferencesbetweensystemsoftwareandapplicationsoftwareDiscussthefourtypesofsystemsoftwareDiscussthebasicfunctions,features,andcategoriesofoperatingsystemsDescribetheWindows,MacOS,UNIX,&LinuxoperatingsystemsCompetencies(Page1of2)Page1265-3Describethepurposeofutili

2、tiesandutilitysuitesIdentifythefivemostessentialutilitiesDiscussWindowsutilityprogramsDescribedevicedrivers,includingprinterdriversCompetencies(Page2of2)Page1265-4IntroductionComputersandcomputerapplicationsareubiquitousinourlivessomuchsothatweexpectthemto“betherewhenweneedthem”.Weoftengivelittleth

3、oughttotheprocessesandprogramsrunningbehindthescenestokeepourcomputersfunctioningeffectively.Thesekindsofprogramsandprocesses(i.e.operatingsystems,utilityprograms,devicedrivers,etc…)fallunderthetopicofsystemsoftwareandarecoveredinthischapter.Page1275-5SystemSoftwareHandlestechnicaldetailsWorkswithe

4、ndusers,applicationsoftware,andcomputerhardwareFourtypesofprogramsOperatingsystemUtilitiesDevicedriversLanguagetranslatorsPage1285-6OperatingSystemsManagecomputerresourcesProvideaninterfacebetweentheusersandcomputerRunsapplicationsAcollectionofprogramsthathandletechnicaltasksEverycomputerhasanopera

5、tingsystemPage1295-7FunctionsofanOperatingSystemPerformsthreetypesoffunctionsManagescomputerresourcesCoordinatememory,processingstorage,andprintersMonitorsystemperformanceProvidesecurityStart-upthecomputerProvidesuserinterfaceCharacter-basedinterfaceGraphicaluserinterface(GUI)RunsapplicationsMultit

6、askingForeground&backgroundapplicationsPage1295-8FeaturesofanOperatingSystemBootingFeaturesincommonwithapplicationsoftwareIconsPointersWindowsMenusDialogboxesHelpPage1295-9CategoriesofOperatingSystemsHundredsofoperatingsystemsThreebasiccategoriesEmbeddedoperatingsystems–hand-heldNetworkoperatingsys

7、tems–linkedcomputersStand-aloneoperatingsystems–desktopPage1305-10MoreonOperatingSystemsOSoftencalledsoftwareenvironmentorplatformOperatingsystemscommonlyusedbyindividualsWindows–mostwidelyusedMacOS–powerfu