chapter 8-9. stand-alone utility programs课件

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1、CHAPTER8OperatingSystemsandUtilityProgramsStand-aloneUtilityProgramsWhatisAntiVirusSoftware?computerprogramsintendedtoidentifyandeliminatecomputerviruses.TheBestDefensethisyearsbestdefenseagainstcomputerviruses,spyware,hackersandspamisanantivirusprogramcalledBitDefender.hasauser-friendlyinterface

2、thatscansallexistingfilesonyourcomputer,allincomingandoutgoingemails,andevenIMtransfers.featuresincludeprivacyprotectionandwebscanningforinternetuse.ayearssubscriptionisabout$24.99.NAVthemostwidelyusedsoftwareistheNortonAntiVirus.(NAV)sinceitsreleasein1990,over100millionpeoplearoundtheworldhaveus

3、edit.it’safreeprogrambutinordertoreceiveliveupdates,avalidsubscriptionisneeded.ayearlysubscriptionisonly$29.99.McAfeeMcAfeeVirusScanisanotherpopularantivirusprogram.it’sdesignedforhomeandhome-officeuse.it’susedspecificallyonaMicrosoftWindowsplatform.the2007editionincludesanumberoffeaturesincludin

4、gonaccessfilesharing,inboundandoutboundfirewallprotection,anddailydefinitionupdates.SophosSophosAntiVirusisanantivirusandanti-spywareprogramthatisprimarilyaimedatcorporateenvironmentsorbusinesses.includesanumberofsecuritytoolsandadvice.alsoincludes24/7supportincludingupgradealerts.Kasperskiforthe

5、averagehomeuserandadvanceduserstheKasperskiantivirussoftwarehasaneasytouseinterface.theprogramuses3tabsforprotection,settingsandsupport.itupdatesitselfonanhourlybasisandisoneofthefastestantivirusprogramsavailable.however,qualitycomesatapriceandyearsubscriptionis$49.99.Antivirussoftware:Howitwork

6、sBy:AshleyWhite“Antivirussoftwareistheequivalenttopenicillinofthecomputerworld.”likepenicillin,antivirusapplicationsactasaguardoveryoursystem,scanningincomingfilesandapplications,“quarantining”orcleaningupunwantedviruseslookingtocauseharmtoyoursystemantivirussoftwareisconsideredtobeanaidthatdetec

7、ts,fixesandevenpreventsvirusesandwormsfromspreadingtoyourcomputeraswellasconnectingcomputers.Whyissoftwareanissue?someantivirussoftwarecanconsiderablyreduceperformancethereshouldnotbemorethanoneantivirussoftwareinstall