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1、Chapter1ComputerHardware1What’sinside?Inthischapter,youwill:GainanoverviewofcomputerequipmentandterminologyLearnhowcomputersareclassifiedLearnhowpersonalcomputersfitintothegamutofmachinesfromPDAstosupercomputersReviewbasiccomponentsofatypicalpersonalcomputersystemLookinsidethesystemunitEx
2、ploreadvantagesanddisadvantagesofseveralcomputerstoragedevicesLearnsomebasicsaboutmaintainingyourcomputerandtroubleshootingproblems2PracticalComputerLiteracy,3rdEditionWhatisacomputer?Adevicethat:AcceptsinputProcessesdataStoresdataProducesoutput3PracticalComputerLiteracy,3rdEditionWhatisa
3、computer?Computerinputiswhateveristyped,submitted,ortransmittedtoacomputersystemDatareferstosymbolsthatrepresentfacts,objects,andideasProcessingismanipulationofdataMosttakesplaceincentralprocessingunit(CPU),acomputer’s“brain”Computerprogramsareinstructionsthattellcomputershowtoprocess4Pra
4、cticalComputerLiteracy,3rdEditionWhatisacomputer?AnoperatingsystemissoftwarethathelpsacomputeroperateefficientlyandkeeptrackofdataApplicationsoftwarehelpsusers“apply”computerstospecifictasksMemoryistemporarystorageStorageispermanentComputeroutputisresultsproducedbycomputer5PracticalComput
5、erLiteracy,3rdEditionWhatisacomputer?6PracticalComputerLiteracy,3rdEditionHowarecomputersclassified?Computersaredividedintofivecategories:HandheldcomputersPersonalcomputersServersMainframecomputersSupercomputers7PracticalComputerLiteracy,3rdEditionHowarecomputersclassified?Handheldcompute
6、r(PDA)featuresinclude:Smallkeyboardortouch-sensitivescreenDesignedtofitinyourpocketRunsonbatteriesUsedwhileholdingit8PracticalComputerLiteracy,3rdEditionHowarecomputersclassified?ApersonalcomputerisdesignedtomeetthecomputingneedsofanindividualDesktopcomputersfitondesksandrunonpowerfromwal
7、loutletsANotebookcomputer(laptop)incorporatesscreen,keyboard,storage,andprocessing9PracticalComputerLiteracy,3rdEditionHowarecomputersclassified?10Atabletcomputerisportable,featuringatouch-sensitivescreenusedforwritingordrawingAserverisusedtoservedatatocomputersconn
