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1、Chapter1ComputerHardware1What’sinside?Inthischapter,youwill:GainanoverviewofcomputerequipmentandterminologyLearnhowcomputersareclassifiedLearnhowpersonalcomputersfitintothegamutofmachinesfromPDAstosupercomputersReviewbasiccomponentsofatypicalpersonalcomputersy
2、stemLookinsidethesystemunitExploreadvantagesanddisadvantagesofseveralcomputerstoragedevicesLearnsomebasicsaboutmaintainingyourcomputerandtroubleshootingproblems2PracticalComputerLiteracy,3rdEditionWhatisacomputer?Adevicethat:AcceptsinputProcessesdataStoresdata
3、Producesoutput3PracticalComputerLiteracy,3rdEditionWhatisacomputer?Computerinputiswhateveristyped,submitted,ortransmittedtoacomputersystemDatareferstosymbolsthatrepresentfacts,objects,andideasProcessingismanipulationofdataMosttakesplaceincentralprocessingunit(
4、CPU),acomputer’s“brain”Computerprogramsareinstructionsthattellcomputershowtoprocess4PracticalComputerLiteracy,3rdEditionWhatisacomputer?AnoperatingsystemissoftwarethathelpsacomputeroperateefficientlyandkeeptrackofdataApplicationsoftwarehelpsusers“apply”compute
5、rstospecifictasksMemoryistemporarystorageStorageispermanentComputeroutputisresultsproducedbycomputer5PracticalComputerLiteracy,3rdEditionWhatisacomputer?6PracticalComputerLiteracy,3rdEditionHowarecomputersclassified?Computersaredividedintofivecategories:Handhe
6、ldcomputersPersonalcomputersServersMainframecomputersSupercomputers7PracticalComputerLiteracy,3rdEditionHowarecomputersclassified?Handheldcomputer(PDA)featuresinclude:Smallkeyboardortouch-sensitivescreenDesignedtofitinyourpocketRunsonbatteriesUsedwhileholdingi
7、t8PracticalComputerLiteracy,3rdEditionHowarecomputersclassified?ApersonalcomputerisdesignedtomeetthecomputingneedsofanindividualDesktopcomputersfitondesksandrunonpowerfromwalloutletsANotebookcomputer(laptop)incorporatesscreen,keyboard,storage,andprocessing9Pra
8、cticalComputerLiteracy,3rdEditionHowarecomputersclassified?10Atabletcomputerisportable,featuringatouch-sensitivescreenusedforwritingordrawingAserverisusedtoservedatatocomputersconn