武汉微博教育整理分享—计算机英语第三版课后答案(五)

《计算机英语》参考译文和练习答案1武汉微博教育整理分享—计算机英语第三版课后答案（五）练习答案e-BusinessSectionAI．Fillintheblankswiththeinformationgiveninthetext:1．commercial;network2．catalogs;engines3．currencies;checks4．relationship-based;purses5．Signatures6．cash;token7．Public8．SymmetricII．TranslatethefollowingtermsorphrasesfromEnglishintoChineseandviceversa:1．userauthentication用户认证2．electronicpurse电子钱包3．informationfilter信息过滤4．dataintegrity数据完整性5．smartcard智能卡6．HTML超文本标记语言7．symmetrickeycryptosystem对称密钥密码系统8．messageauthenticationcode信息鉴定码9．unauthorizedaccesscontrol未授权访问控制10．electroniccatalog电子目录11．electronicmoney(或cash)电子货币12．searchengine搜索引擎13．digitalsignature数字签名14．userinterface用户界面15．EFT(ElectronicFundsTransfer)电子资金转帐16．publickeycryptosystem公钥密码系统17．PDA(personaldigitalassistant)个人数字助理18．hypertextlink超文本链接《计算机英语》参考译文和练习答案219．3Dimage三维图像20．creditcard信用卡III．Fillineachoftheblankswithoneofthewordsgiveninthefollowinglist,makingchangesifnecessary:Thetermelectroniccommerceencompassestheentireprocessofbuying,selling,andadvertisingproductsandservicesusingelectroniccommunicationsmedia.Butwhenpeopletalkabout(e-commerce)today,they'reusuallyreferringtotheemergingmarketplaceontheInternet.(Retailers)ofallkindsarenowscramblingtoestablishthemselvesandreach(customers)inthisnewmarketplace.Themajorobstacletoe-commerceistheproblemofhowtopayfor(products)andservicesonline.Howcanelectronic(payments)bemadeconvenient,reliable,and(secure)forconsumersandretailersalike?AswitheveryotherInternet(technology),aglobalstandardforonline(transactions)mustemergebeforee-commercebecomesawidelyaccepted(practice).Thedrivetoestablishastandardfor(electronic)moneyiswellunderway.Softwaredevelopers,banks,and(credit)cardcompaniesareallpushingtransactionsystemsto(online)merchants,eachbettingthattheirsystemwillbecomethe(standard)waytopayforthingsonline.AsaWeb(storefront)owner,youmustinvestigateallthe(options)andofferasmanychoicestoyourcustomersastheydemand,whilekeeping(costs)andcomplexitiesfromgettingoutofhand.IV．TranslatethefollowingpassagefromEnglishintoChinese.Acomputervirusisaprogramthat“infects”computerfiles(usuallyotherexecutableprograms)byinsertinginthosefilescopiesofitself.Thisisusuallydoneinsuchamannerthatthecopieswillbeexecutedwhenthefileisloadedintomemory,allowingthemtoinfectstillotherfiles,andsoon.Virusesoftenhavedamagingsideeffects,sometimesintentionally,sometimesnot.Avirusthatpropagates(传播)itselfacrosscomputernetworksissometimesreferredtoasa“Worm”,especiallyifitiscomposedofmanyseparatesegmentsdistributedacrossthenetwork.A“TrojanHorse”,thoughtechnicallynotavirus,isaprogramdisguisedassomethinguseful,whichwhenrundoessomethingequallydevious(阴险的)tothecomputersystemwhileappearingtodosomethingelse.计算机病毒是通过在计算机文件（通常是其他可执行程序）中插入自身的拷贝来“传染”这些文件的程序。这通常以如此的方式进行，以致文件装入内存时拷贝即被执行，从而使其可再传染其他的文件，等等。病毒常常产生破坏性的副作用，有时是有意的，有时则是无意的。在计算机网络上自我传播的病毒有时称为“蠕虫”，尤其是在它由分布在网络各处的许多独立部分构成的情况下。“特洛伊木马”虽然从技术上讲不是病毒，但它是伪装成有用东《计算机英语》参考译文和练习答案3西的程序，运行时在对计算机系统做着同样阴险的事情的同时，表面上却显得在做其他的事情。SectionBI．Fillintheblankswiththeinformationgiveninthetext:1．Four2．e-Business3．vendor-centric;customer-centric4．InfrastructureII．TranslatethefollowingtermsorphrasesfromEnglishintoChineseandviceversa:1．vendor-centricmodel客户中心模式2．Website网站3．Websurfing网上冲浪4．middlewareserver中间件服务5．back-endplatform后端平台6．e-Businessstrategy电子商务策略7．binaryformat二进制格式8．customer-orientede-Businesssystem面向客户的电子商务系统9．ISV(independentsoftwarevendor)独立软件推销商10．informationinfrastructure信息基础结构设施SectionCI．Fillintheblankswiththeinformationgiveninthetext:1．Services2．Marketing3．storefronts;consulting4．advertisements;subscriptionsII．TranslatethefollowingtermsorphrasesfromEnglishintoChineseandviceversa:1．Webstorefront网上店面2．electronicpresskit电子版发行包3．onlineretail在线零售4．multimediademo多媒体演示5．onlineaccess联机访问6．value-addedservices增值业务7．productpromotion产品推销8．communicationmedium通信媒体《计算机英语》参考译文和练习答案4Unit14ComputerSecuritySectionAI．Fillintheblankswiththeinformationgiveninthetext:1．employees2．Hackers3．Crackers4．damage;manipulation5．Worm6．softwarepiracy7．access;backup8．PasswordsII．TranslatethefollowingtermsorphrasesfromEnglishintoChineseandviceversa:1．encryptionprogram加密程序2．deletioncommand删除命令3．authorizeduser授权的用户4．backupcopy备份的副本5．voltagesurge电涌，浪涌电压6．circuitbreaker断路器7．electroniccomponent电子器件8．data-entryerror数据输入错误9．electronicbreak-in电路中断10．powerline电力线，输电线11．detectionprogram检测程序12．powersource电源13．destructivecomputerprogram破坏性计算机程序14．computervirus计算机病毒15．softwarepiracy软件侵权16．hard-diskdrive硬盘驱动器17．viruschecker病毒检查程序18．primarystorage主存储器19．electronicbulletinboard电子公告板20．surgeprotector浪涌电压保护器武汉微博教育《计算机英语》参考译文和练习答案5III．Fillineachoftheblankswithoneofthewordsgiveninthefollowinglist,makingchangesifnecessary:Avirusorotherunwelcomesurprisecanlurkinyourcomputersystemfordaysormonthswithoutdiscovery.Atimebombisacomputerprogramthatstaysinyoursystemundetecteduntilitistriggeredbyacertaineventintime,suchaswhenthecomputersystemclockreachesacertaindate.AtimebombisusuallycarriedbyavirusorTrojanhorse.Forexample,theMichelangeloviruscontainsatimebombdesignedtodamagefilesonyourharddiskonMarch6,thebirthdayofartistMichelangel