〖精选文档〗浅谈云计算(英文版).doc

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〖精选文档〗浅谈云计算(英文版)
AReviewOfCloudComputing
Teammembers:
许慧平
赵曼
刘强
罗宾
2012年3月22日
〖精选文档〗浅谈云计算(英文版)
〖精选文档〗浅谈云计算(英文版)
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〖精选文档〗浅谈云计算(英文版)
AReviewOfCloudComputing
Abstract:,thispaperconcludestheconceptofcloudcomputing,emergingbackground,thepresentmainapplications,thefuturedevelopmentoftheprospectandthepresent'sproblems.
Keywords:cloudcomputing;dataprocessing;distributedcomputing;Internet


,,Softwareengineeringchangedthewayoffaceingtheservicesuchasfacingmachine,(Software as a Service),'tneedtobecomeareal“Amateurengineers”. computing is a resource delivery and usage model, it means get
〖精选文档〗浅谈云计算(英文版)
〖精选文档〗浅谈云计算(英文版)
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〖精选文档〗浅谈云计算(英文版)
 resource (Hardware, software)via network. The network of providing resource is called ‘Cloud’. The hardware resource in the ‘Cloud’ seems scalable infinitely and can be used whenever.

:
Parallelprocessing
,itcanbesaidofaprogramexecutedonnprocessorsspeedmaybeperformedonasingleprocessorspeedntimes.
Distributedprocessing
Distributedprocessingsystemwillbeindifferentlocationsormultiplecomputerswithdifferentfunctionsordifferentdatacommunicationsnetworklinkingunderthecontrolofthecontrolsystemofunifiedmanagementandcoordinationtocompletethecomputersystemforinformationprocessingtasks.
Gridcomputing
GridcomputingisaccompaniedbytheInternetandtherapiddevelopmentofthenewcomputingmodel,"virtualsupercomputer",eachofwhichinvolvedinthecalculationcomputerisa"node",theentirecalculationismade
〖精选文档〗浅谈云计算(英文版)
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〖精选文档〗浅谈云计算(英文版)
​​upofthousands"nodes"consistingofagrid,sothismethodofcalculationiscalledgridcomputing.
Whatcloudcomputingis?Cloudcomputingisanemergingbusinesscomputingmodel.
Specifically,CloudComputingisakindofdistributedprocessing,parallelprocessingandgridcomputingdevelopment,orcommercialimplementationofthesecomputerscienceconceptsThetransmissioncapacityofthehigh-speedInternet,dataprocessingprocessfromapersonalcomputerorservertoaclusterofcomputersontheInternet.,Thisisarevolutionarymove,theanalogy,whichislikeashiftfromtheoldsingle-,likegas,waterandelectricity,like,accesstoconvenient,low-!Ourcomputingmodelismostlocallyinstalledsoftware,andthenexchangedatawiththeserverthroughlocalprocessing,cloudcomputing,wedonotneedlocalprocessing,justusethebrowser.
Afterunderstandingofwhatcloudcomputing,letusunderstandsomeoftheothercloudcomputing.
CloudComputingArchitecture
.
〖精选文档〗浅谈云计算(英文版)
〖精选文档〗浅谈云计算(英文版)
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〖精选文档〗浅谈云计算(英文版)
Cloudserver
Cloudserverisasetofclusteredserversonvirtualquasi-independentpartoftheserver,cluster,eachserverhasamirrorimageofthecloudserver.
AlsocloudcomputingissimilarwithVPSservervirtualizationtechnology,cloudserverisaVPSisavirtualsoftware,theVZorVMonasingleservervirtualquasi-independentpartoftheserver,eachpartcanbedonetoseparatetheoperatingsystem,managementmethodsthesameserver.

-scaledatasets(greaterthan1TB).
,aswellasalargenumberofusers,cloudcomputingsystemusesthestoreddataofdistributedstorage,redundantstoragetoensuredatareliability.
,analysis,datamanagementtechnologynecessarytoefficientlymanagelargeamountsofdata.
〖精选文档〗浅谈云计算(英文版)
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〖精选文档〗浅谈云计算(英文版)
,whichincludesasingleresourceisdividedintomultiplevirtualresourcessplittingmode,,allowsasingleserverintoseveralvirtualserversorevenhundredsofisolated,wearenolongerlimitedbyphysicalboundaries,buttheCPU,memory,diskI/Ohardwareintoadynamicmanagementoftheresourcepool,toimproveresourceutilization,simplifysystemsmanagement,serverconsolidation,ITbusinesschangemoreresilient.

Aswellknown,,,Ionlyplantointroducesomeapplicationswhichhaveusedasfollowing.
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〖精选文档〗浅谈云计算(英文版)

Therearethreemajorapplicationsinscientificresearch,namelyearthquakemonitoring,,,,itneedhighspeedpowerfulcomputertoprocess,nowthe"Cloud".

,Rising"CloudSecurity"plan,'sPC,.
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〖精选文档〗浅谈云计算(英文版)

"Cloud"',medicalimageprocessingisalsoaimportantapplication.

,',-mailserverandonlinereal-timetranslationarealsousedonCloud.


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〖精选文档〗浅谈云计算(英文版)
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〖精选文档〗浅谈云计算(英文版)
,alittercablecompanysalsowanttomakesomehighqualityaudio,,notonlycantheymeettheirownneed,butalsocantheymakefullyuseoftheirresources.
Otherwise,nowsomesensitiveinformationlikeradioandvideoneedlargemountofspacetostore,sowecanstorethemtotheCloudwhichhasmassdatastoragecapacity.

Actually,,theChineseresearchers,havehadthetransparentComputingideabeforetheemergenceofthetermwhichiscalled"CloudComputating".Transparentcloudcomputingembodiesthecharacteristicsofcloudcomputing,thatisdynamicresourcepools,virtualization,transparenttotheuseretc.
Atpresent,,IBMBlueCloudplatform,AmazonElasticComputeCloud(EC2)platformandMicrosoftAzurecomputingplatform.
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〖精选文档〗浅谈云计算(英文版)

AmazonisaE-,,,theuseron-,forISPnotonlycantheymeettheirownneed,,Bothsavedthehighcostofhighperformancehardwareconfiguration,alsocancallchargesminimumcostbutitcangetthebestservicetotheforehead.

WithGoogle',whichreferstocertainstrategy,usingspecificcomputerprogramsearchofinformationontheInternet,ininformationfororganizationandprocessing,,informationontheInternetwithoutsomuchnow,,withtheInternetinformationexplosivegrowth,thereisalargeamountofinformationrequiredtostoreandfortheusertobrowse,usersneedfromthevastamountofinformationtheywanttoextractusefulinformation,mustdependonthesearchenginetofind,sothecloudcomputingisputontheagenda.