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ID:40057027
大小:1.38 MB
页数:3页
时间:2019-07-18
《Cloud Computing - New Wine or Just a New Bottle》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、GUESTEDITORS’INTRODUCTIONCloudComputing:CloudComputing:NewWineorJustNewWineorJustaNewBottle?aNewBottle?JeffreyVoas,ScienceApplicationsInternationalCorporationJiaZhang,NorthernIllinoisUniversityhebuzziseverywhere:cloudsandcloudelse.Phase3usheredincomputernetworksthatcomputing.Althoughthistopichasallo
2、wedmultiplecomputerstoconnecttoeachrecentlyattractedsignificantmomen-other.YoucouldworkonaPCandconnecttoTtumandattentioninbothacademiaothercomputersthroughlocalnetworkstoshareandindustry,nocommondefinitionexistsyet,1resources.Phase4sawtheadventoflocalnet-whichbegsthequestion,howcantherebesoworksthat
3、couldconnecttootherlocalnetworksmuchbuzzaboutsomethingwithoutanacceptedtoestablishamoreglobalnetwork—userscoulddefinition(s)?Itseemsquitecounterintuitive.nowconnecttotheInternettoutilizeremoteap-It’sgenerallyacceptedthatcloudcomputingplicationsandresources.Phase5broughtusthereferstoanewITparadigmfor
4、users.Butbe-conceptofanelectronicgridtofacilitatesharedforeweacceptthispremise,let’sfirstseefromcomputingpowerandstorageresources(distrib-ahistoricalperspectivewherecloudcomputingutedcomputing).PeopleusedPCstoaccessafitsinandwhetherit’sreallydifferentorjustthegridofcomputersinatransparentmanner.Now,
5、nextfad.inPhase6,cloudcomputingletsusexploitallavailableresourcesontheInternetinascalableThisYear’sModel?andsimpleway.Figure1illustratesthecomputingparadigmshiftAsFigure1shows,aconceptuallayer—acloudofthelasthalfcentury.ontheInternet—hidesallavailableresources(ei-Specifically,thefigureidentifiessixd
6、istincttherhardwareorsoftware)andservices,butitphases.InPhase1,peopleusedterminalstocon-publishesastandardinterface.AslongasusersnecttopowerfulmainframessharedbymanycanconnecttotheInternet,theyhavetheentireusers.Backthen,terminalswerebasicallylittleWebastheirpowerPC.Cloudcomputingthusmorethankeyboar
7、dsandmonitors.InPhase2,referstothetechniquesthatenableandfacilitatestand-alonepersonalcomputers(PCs)becamethisscenario.powerfulenoughtosatisfyusers’dailywork—WhencomparedtotheinfinitelypowerfulIn-youd
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