《云计算概览》PPT课件

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1、CloudComputingBasics云计算概览NieHua聂华2010-04-25云里雾里IntheCloudinthemistWhywetalkaboutit?为什么要谈云计算？Background&Trends背景与趋势Whatisit?云计算是什么？Definitions&Features&More定义与特点Whatdowedowithit?云计算与我们CloudComputing@Dailylife日常生活CloudComputing@Libraries图书馆Exercises练习C

2、omputingParadigm:Distributedcomputing,ParallelComputingandgridcomputing;evenP2P……分布式计算，并行计算，网格计算，还有P2P等等……ViaGoogleSearchTrendsViaGoogleSearchTrendsForecasts:frombusinessperspectiveIDC:“spendingonITcloudserviceswilltripleinthenext5years,reaching$42bi

3、llion&capturing25%ofITspendinggrowthin2012andnearlyathirdofgrowththefollowingyear.WiththeoverallITmarketspendbeing$383billion,thiskindofgrowthvalidatesthattheopportunitydeservestheattentionitisgetting”--2008到2012年云服务支出将增长三倍达到$420亿，占IT增长的1/4；证实了一种我们必须

4、关注的机会。MerrillLynch:by2011,$160billion($1600亿)Forecast:FromTechnologyPerspective#1StrategicTechnologyAreafor2010Source:Gartner’sHypeCyclefor2009Peakoftheinflatedexpectation=期望膨胀顶峰期Forrester:“……thatcloudcomputing isoneoftheTop15TechnologyTrendsandthati

5、twarrantsinvestmentnowsoyoucangaintheexperiencenecessarytotakeadvantageofitinitsmanyformstotransformyourorganizationintoamoreefficientandresponsiveserviceprovidertothebusiness.”-ForresterResearch,October13,2009云计算是前十五个重要的技术发展趋势之一；尽快开始对云计算的投入可以保证你获得必要

6、的经验去享用云计算带来的各个方面的多种多样的好处；最终使得你所负责的机构成为一个更有效率的和反应迅速的服务提供者。MajorPlayers’CloudComputingServicesGoogleIBMMicrosoftAmazonMOSSOForce.comCordysWhywetalkaboutit?为什么要谈云计算？Background&Trends背景与趋势Whatisit?云计算是什么？Definitions&Features&More定义/特点Whatdowedowithit?云计算

7、与我们CloudComputing@Dailylife日常生活CloudComputing@Libraries图书馆Exercises练习GoodLuck!Anonymous:“[…]unfortunatelythemarketingguysgotholdofthetermbeforethetechnicianshadknownwhatCloudComputingis[…]Whatiscloudcomputing?--WikipediaDefinitionWhyitiscalled“Cloud”

8、?--ThetermcloudisusedasametaphorfortheInternet,basedontheclouddrawingusedtodepicttheInternetincomputernetworkdiagramsasanabstractionoftheunderlyinginfrastructureitrepresents.云是Internet的比喻。计算机网络图中使用云图形来抽象表现底层架构。CloudComputing:....Internet-("cloud-")ba