《Advantages-of-Cloud-Computing.docx》由会员分享，可在线阅读，更多相关《Advantages-of-Cloud-Computing.docx（4页珍藏版）》请在课桌文档上搜索。
1、AdvantagesofCloudComputingArunKumar1. AnIntroductiontoCloudComputing1 Bciorvtalkingabouttheadvantagesofcloudcomputing.Ict,slookatwhatcloudcomputingisanditsvarioustypes.Cloudcomputingoffersseveraladvantagesbyallowingyoutouseservicesthatincludeinfrastructure,applications,and/orstoragespaceforanominalf
2、ee.AstheseSCrViCCSarecreatedandofferedby(hecloudserviceprovider,youneednotpurchaseadditiomlinf11slruclureforuseatyourownpremises(servers,applicationprograms.OPCnningsystems,etc.).2 Onecandefinecloudcomputingasapay-per-usemodelforenablingon*denandaccess(oreliableandconfigurableresourcesthatcanbequick
3、lypnvisioncdandreksedWithminimalconsumerinvolvementintermsofnunagc11cnt.Youpayonlyfortheresourcesyouuse.YouneednosuitIhcirneeds.Theclients(endUseni)however,cannotchangeormodifythesoftware.Mozy3isanexampleofSaaS.ItisbasicallyabackupSerViCCthatOfrCrSasoftwaretohelppeoplebackuptheir(hta.Thus,youcanuse(
4、hescr,iccwithoutactuallyhaving(ocodeorbuythesoftware.Youjusthavetopayan】Ofnhlyorannualfeetousetheservice.6 PaaS4(PlatfomiasaService):Offersaplatformtoclientsfordifferentpurposes.Forexample,(heWiixlowsAzure5offersaPlaIfOrm(oJevelopeis(obuild,tes,andhostapplicationsthatcanbeaccessedbytheendusen.Theend
5、usersmayrmaynotknowthattheapplicationishostedonthecloud.Asmentionedearlier,thestoragespaceforuserdatamaybeincreasedordecreasedpertherequirementofhcapplications.AswithIhCSaaS,youdonotneedtobuildtheplatform.Youjustpayanominalfeeforusingtheservice.7 laaS6(InfrastructureasaSen*ice):Offersinfrastncturcon
6、demand.TheinfrastructurecanbeanythingtTonstorageserverstoapplicationstooperatingsystems.Office3657offersacombinationoftheseinfrasrcureandfallsunderthiscategory.WithOffice365.youcangetplentyofapplicationsalongWiIhstoragespace.BuyingIntraslruclureorrentingiloutintraditionalmodelscanbeveryexpensive.Whe
7、nyouoptforIaaS.yousavealotonexpenses,space,andpersonnelrequiredtosetupandmaintaintheinfraMruc(urc.Thecloudserviceprovidertakescareofsettingupandmaintainingtheinfras11ciure.Youjustpayafeetouseitperyourrequirements.8 Asyoucansee,therearcnumerousadvantagesofcloudcomputing,themostbasiconesbeingremoteacc
8、essibility,lowercosts,andquickre-xovisions.3. GreenComputing9 Thissectiontalksaboutadvantagesofcloudcomputingundergreencompiling.Greencomputingcanbedefinedasenergyefficientusageofcomputingresources.MgofthecomputerstodayarcEnergyStarHcertilied.,I*hcyarcdesignedtoreducetheconsumptionofelectricitywhile
9、alsoreducingemissionsthatdamage(heCnVinOnmCn1.Takingtheadvantagesofcloudcomputingfurtherco11ribuiescogreencomputing.IOAscloudcomputingcanalwaysbeusedtorc-provisioningofresources,whenyouneedtoexpand,youneednotbuy(heinfrasiructurc(oincreaseIhCcarbonemissionsbywayofusingInOreelec(riciiytocooloff(becomp
10、uterresources.Yocanjustexpandtothecloudouse(hepne-buillresourcestoslopIhCincreaseinelectricityusagealyourend.Youalsoneednotaddclingcomponentstherebyreducingthehazardousemissions.Thus,yousavetheenvironmentwhilealsosavingontheexpensesincurredduetoademandforexpansion.11 Theexpansioncanbeassmallaswritin
11、gacodeforyourbusiness.ThereareSeVenIlgenericsoftwareavailablethroughSaaS.Youcanusetheonethatsuitsyourcompanyorpersonalneeds.Thissavesyou(hetroubleofaddingoneormorecomputerstoyourinfrastructureforthepurposeofstoring(hedatabase(三)usedbyIhecode.Thiskeepsacheckonyourelectricityusage,(herebycontributingt
12、ogreencomputing.12 Cloudcomputingalsoallowsyoutoletyouremployeestelecommute.ThismeanslargesavingswhilecontributingIieavilytoenvironmentallyfriendlygn?encomputing.Youremployeescanaccessthecloudpublicrp11va(e-fromanycomeroftheworldandcanworkfnmtheirhomes.Thismeanstheyneednotdrivetothebusinesspremises.
13、Thissavesthemfuelandreducescarbonemissions,whichinturn,savestheenvironment.Youcanalsocutdownthenumberofelectronicdeviceswhenyouremployeesavtelecommuting.Youuselesscomputersandothermachinery,whichmeansreducedusageofelectricity.Ifyouuselesscompulenandservers,youalsocutdownonclingresources,whichreduceb
14、othelectricityusageandcarbonemissionsagaincontributingtoIhCenvironmentandgreencomputing.4. Conclusion13 Therearcseveralivancagcsofcloudcomputingasevidencedbytheabovediscussion.Heresasummary:14 RemoteAccessibility:Withcloudcomputing,yourbusinessisnotrestrictedtoaparticularlocation.Thisapplies(oindivi
15、dualsalso.Youcanaccesstheservicesfromanywhere.AllyouneedisyourIDandpassword.Insomecases,IheltmaybeextrasecurityrequirementsbutasIhey(aremobile,youcaneasilyaccessyourcloudservicesfromanyparioflheworld.15 EasyExpansion:Asofthecharacteristicsofcloudcomputingisksflexibility,youcanquicklyaccessn*reresour
16、cesifyouneedoexpandyourbusiness.Youneedikhbuyextrainfras(ruc(ur.YoujustneedIoinformyourcloudproviderabulyourrequirementsandtheywillallocateresourcestoyou.Inmosteases,theentireprccssisautomatedsotheexpansiontakesjustafewminutes.TheSamCisapplicableifyouwishtouselessresource.Oneofthehcstadvantagesofclo
17、udcomputingiseasyrexllocalionofresources.16 Security:,houghpeopledoubtcloudcomputing,cloudstendtobemoresecurethanthetraditionalbusinessmodels.Cloudsofferreal-timebackupwhichresultsinlessdataloss.Ineaseofoutage,yourCU$1OmerScanuse(hebackupSerVelSthatsyncWilhlhemainonesassoonastheyareup.Yourbusinessge
18、lsmaximumuplinewithoutanylossofdataduringtheIninsihvns.Otherthanthis,cloudsarclesspronetohacksandDdoS9attacksaspeopledontknowthewhereaboutsofyourdata.17 EnvironmentallyFriendly:Usageofready-maderesourcestailoredIoyourneedshelpsyoureducetheelectricityexpenses.Whileyousaveonelectricity,youalsosaveonre
19、sourcesrequired(ocooloffcomputersandothercomponents.Thisreducestheemissionsdangerous(oenvironment.WordsandNewExpressions1 Thistextistakenf11rom:/brighthub.2 SaaS:asoftwaredeliverymodelinwhichsoftwareanditsassociateddataarehostedcentrallyandaretypicallyaccessedbyusersusingathinclient,nomallyUSinKaweb
20、browserovertheInternet软件即服务模型(云计算三种模型之一)3 Mozy:anonlinebackupserviceforx*thWindowsandMaCusers,在线备份服务(网络硬盘)4 PaaS:thedeliveryofacomputingplatformandsolutionstackasaservice平台即服务模型(云计算三种模型之一)5 WindowsAzure:aMicrosoftcloudPlatforeusedtobuild,hostandscalewebaplicationsthroughMicrosoftdatacenters微软云计算的操作系
21、统6 IaaS:aservicedeliverscoaputerinfrastructure-typicalIyaplatfoinvirtualizationenvironment-asaservice,alongwithrawstorageandnetworking基础架构即服务模型（云计算三种模型之一）7 Office365:co三mercialsoftwareplusservicesofferingasetofproductsfromMicrosoftCorporation,withtheinitialplanincludingaProfessionalsubscriptionandanEnterprisesubscription微软云办公软件8 EnergyStar:aninternationalstandardforenergyefficientconsumerproductsoriginatedinthe1.nitedStatesofAmerica节能认证的标记9 DDOS:adistributeddenialofserviceattackwhichoccurswhenmultiplesystemsfloodthebundwidlhorresourcesofatarRCtcdsystem,usuallyoneor三orewebservers分布式拒绝服务攻击
