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1、Cloudcomputing1.IntroductionCloudcomputingisknownasthemostanticipatedtechnologicalrevolutionovertheentireworld,andthereasonwhycloudcomputinghasbroughtwidespreadattentionisthatitnotonlyrepresentanewtechnologyappeared,butalsoleadtotheentireindustrytochange.Th
2、erefore,therankingofnationalcompetitivenesswillchangeaccordingly.2.CloudcomputingdefinitionandapplicationTheconceptofcloudcomputingisputforwardbyGoogle,whichisabeautifulnetworkapplicationsmode.BasedonincreasinginInternet-relatedservicesanddeliverymodels,itp
3、rovidesdynamic,easytoexpandandvirtualizedresourcesusuallythroughtheInternet.ThisservicecanberelatedtoIT,softwareandInternet;otherservicescanbesupportedtoo.Itmeansthatcomputingpowercanbecirculationasacommodity.Asweexpect,moreandmoreenterpriseusethisnewtechno
4、logyintothepracticalapplication,suchaswebmail,Gmailandapplestoreuseitforcomputingandstorage.Withthetechnologydevelopment,cloudcomputinghasgivenfullplaytoitroles,Industry,NewcomersandMediabuycomputertechnologytomakenetworkcheaper,faster,convenientandbetterco
5、ntrol.Cloudcomputingisusedinthedistributedcomputersbycomputing,ratherthanthelocalcomputerorremoteserver,theoperationoftheenterprisedatacenterandtheInternetaremoresimilar.Thisprocessallowscompaniestobeabletoswitchresourcestotheurgentapplicationaccordingtocom
6、puterandstoragesystemsdemandaccess.Thismeansthatthecomputingpowercanbenegotiable,likewaterandelectricity,accessconvenientandlow-cost.ThebiggestdifferenceisthatitistransmittedviatheInternet.3.AdvantageByprovidingalargeandsecuredatastoragecentersforcloudcompu
7、ting,usersdonothavetoworryabouttheirowndatawhichbelostforsomereasonordestroyedbycomputervirusinvasion,suchassomedatastoredintheharddiskdatawillbelostbythecomputerdamagedandvirusinvasion,sothatuserscannotaccessthedataandrecoverdata,anotherdisadvantagemayalso
8、appearwhenotherpeopleuseyourcomputerstealtheuser'scomputer,suchaspersonalconfidentialinformationandbusinessdataloss.“Gateofbluephotos"isatypicalinsecureexample.IfuseruploadsthephotosthroughtheInternein
