Birth of the Net 毕业论文英文翻译

Birth of the Net 毕业论文英文翻译

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时间:2017-07-11

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1、BirthoftheNetTheInternethashadarelativelybrief,butexplosivehistorysofar.Itgrewoutofanexperimentbeguninthe1960'sbytheU.S.DepartmentofDefense.TheDoDwantedtocreateacomputernetworkthatwouldcontinuetofunctionintheeventofadisaster,suchasanuclearwar.Ifpartofthenetworkweredamage

2、dordestroyed,therestofthesystemstillhadtowork.ThatnetworkwasARPANET,whichlinkedU.S.scientificandacademicresearchers.Itwastheforerunneroftoday'sInternet.  In1985,theNationalScienceFoundation(NSF)createdNSFNET,aseriesofnetworksforresearchandeducationcommunication.BasedonAR

3、PANETprotocols,theNSFNETcreatedanationalbackboneservice,providedfreetoanyU.S.researchandeducationalinstitution.Atthesametime,regionalnetworkswerecreatedtolinkindividualinstitutionswiththenationalbackboneservice.NSFNETgrewrapidlyaspeoplediscovereditspotential,andasnewsoft

4、wareapplicationswerecreatedtomakeaccesseasier.CorporationssuchasSprintandMCIbegantobuildtheirownnetworks,whichtheylinkedtoNSFNET.AscommercialfirmsandotherregionalnetworkprovidershavetakenovertheoperationofthemajorInternetarteries,NSFhaswithdrawnfromthebackbonebusiness.  

5、NSFalsocoordinatedaservicecalledInterNIC,whichregisteredalladdressesontheInternetsothatdatacouldberoutedtotherightsystem.ThisservicehasnowbeentakenoverbyNetworkSolutions,Inc.,incooperationwithNSF.HowtheWebWorksTheWorldWideWeb,thegraphicalportionoftheInternet,isthemostpop

6、ularpartoftheInternetbyfar.OnceyouspendtimeontheWeb,youwillbegintofeellikethereisnolimittowhatyoucandiscover.TheWeballowsrichanddiversecommunicationbydisplayingtext,graphics,animation,photos,soundandvideo.  Sojustwhatisthismiraculouscreation?TheWebphysicallyconsistsofyou

7、rpersonalcomputer,webbrowsersoftware,aconnectiontoanInternetserviceprovider,computerscalledserversthathostdigitaldataandroutersandswitchestodirecttheflowofinformation.  TheWebisknownasaclient-serversystem.Yourcomputeristheclient;theremotecomputersthatstoreelectronicfiles

8、aretheservers.Here'showitworks:  Let'ssayyouwanttopayavisittothetheLouvremuseumwebsite.Firstyouenterthe

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