2018年6月英语四级阅读200篇第126篇：64位大帝登基思维导图
64-Bit Takes Off 64-bit desktop computing has taken a significant step toward becoming a pervasive reality:AMD's ( Advanced Micro Devices ) release of its Athlon 64 chips — a
树图思维导图提供 2018年6月英语四级阅读200篇第126篇：64位大帝登基 在线思维导图免费制作，点击“编辑”按钮，可对 2018年6月英语四级阅读200篇第126篇：64位大帝登基 进行在线思维导图编辑，本思维导图属于思维导图模板主题，文件编号是：86a9e09e57bc361f2d9a2ed876280f51
思维导图大纲
2018年6月英语四级阅读200篇第126篇：64位大帝登基思维导图模板大纲
64-BitTakesOff
64-bitdesktopcomputinghastakenasignificantsteptowardbecomingapervasivereality:AMD's(AdvancedMicroDevices)releaseofitsAthlon64chips—andApple'slaunchofitsG5CPUs—means64-bitprocessors,oncereservedforserversandhigh-endworkstations,arenowinPCsavailableonretailshelves.
Intime,64-bitPCscouldchangethefaceofdesktopcomputing.A64-bitchipcanrunlonger,morecomplexinstructionsthana32-bitone,improvingperformanceofdataintensivetaskssuchasaudioandvideoencoding,advancedengineeringdesignapps1,and,naturally,games.
Equallykeyisa64-bitCPU'sabilitytorecognizeandusealotmoreRAM2.Today's32-bitchips,suchasAMD'sAthlonXPandIntel'sPentium4,canaddressupto4GBofRAMsplitbetweentheOSandapplications.FewPCshavethatmuchmemory,andevenfewerappsuseit.Butwithever-more-complexsoftware,thatlimitationmaybecomeabottleneck,makingAthlon64'sabilitytoaddressawhoppingterabyte(1000GB)3ofphysicalmemoryveryattractive.
WhyisAMDpushingthe64-bitangleatall?Becausecompanyexecutivesbelievethe64-bitdesktopageisdawningnow."Oncevideoeditorswatcha64-bitPCencodevideodirectlytoaDVDonthefly,they'llwantone,"saysRichHeye,vicepresidentofAMD'smicroprocessorunit.Andoncegamersseethecinematicqualitythat64-bitchipshelpmakepossible,they'llwantone.Thoughmass-marketadoptionwilltakeafewyears,"theaveragelifetimeofaPCisthreetofouryears,andIthinkalotofpeoplewillberunning64bitsbeforethat'sup,"Heyesays.
ExecutivesatInteldisagree,seeing64-bitcomputingaslargelyaservertechnologyintheshortterm."Withjust5percentofserversusing64-bitaddressability,thereislittleneedtoday[for64bits]onthedesktop,"saysGeorgeAlfs,Intelspokesperson,addingthatwithoutsoftwareandothertoolstomakeitworkatitsbest,64bitsdoesn'tmeanmuch.
MicroDesignResources'sKrewellseesIntel'sresistanceto64bitsforthedesktopasamovetoprotectitssizeableinvestmentinits64-bitItaniumCPU,designedforserversandworkstations.
Meanwhile,withAthlon64,AMDhasreignitedthechipwars."That'salwaysgoodnewsforusers,"saysMDR'sKrewell.
练习题：
Ⅰ.Choosethewordwhichhasthesameorsimilarmeaningwiththeunderlinedword:
1.AMD'sreleaseofitsAthlon64chips
A.launchB.setfree
2.morecomplexinstructionsthana32-bitone
A.notsimpleB.notclever
3.Becausecompanyexecutivesbelieve
A.workersB.managers
4.toprotectitssizeableinvestment
A.roughB.huge
5.desktopageisdawningnow
A.returningB.coming
Ⅱ.Question:
Wherewere64-bitCPUsusedbefore?
答案：
Ⅰ.1.A2.A3.B4.B5.B
Ⅱ.serversandhigh-endworkstations
译文：
“64位大帝”登基
64位的台式电脑朝着普及迈出了重要的一步:超微的速龙64位处理器和苹果电脑的G5台式平台一起投放市场,这意味着曾经专为服务器和高端的工作站保留的64位处理器,现在也在零售货架上可以买到,用于装备个人电脑系统。
64位系统能够改变桌面计算的现状,因为64位的芯片能运行比32位的芯片更长、更复杂的指令,改良执行大运算量任务时的性能,例如音频和视频解码、高级工程设计应用程序,当然了,还包括电脑游戏。
同样重要的是64位处理器具有识别和使用更多内存的能力。今天的32位芯片,包括英特尔的奔4和超微的速龙XP,能够在操作系统和应用软件之间多达4GB的内存中寻址。拥有如此大内存的个人电脑很少,在应用程序方面能与之配敌的就更微乎其微了。但是目前以及将来使用更复杂的软件时,这种局限就成了瓶颈,这使得64位处理器能够寻址巨大的1TB内存的能力变得非常有吸引力。
超微到底为什么要推出64位?这是因为,公司的决策者们相信,64位台式机的时代已经来临了。“当电视图像
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