計算機專業(yè)英語文章

　　計算機專業(yè)英語課程綜合了計算機專業(yè)知識和英語語言運用能力,是計算機應(yīng)用、軟件開發(fā)、信息處理、網(wǎng)絡(luò)通信、多媒體設(shè)計、電子商務(wù)等專業(yè)學(xué)生的必修課程。下面是學(xué)習(xí)啦小編帶來的計算機專業(yè)英語文章，歡迎閱讀!

　　計算機專業(yè)英語文章

　　X.509

　　X.509 describes two levels of Authentication, simple authentication, based on use of a password to verify user identity, and strong authentication, using credentials created by cryptographic methods. The standard recommends that only strong authentication should be used as the basis of providing secure services. Public-Key Cryptography is used for strong authentication, but X.509 is not dependent on the use of a particular cryptographic Algorithm, though two users wishing to authenticate must support the same Algorithm.

　　X.509描述了兩個級別的認(rèn)證，簡單認(rèn)證和強認(rèn)證，簡單認(rèn)證基于使用一個密碼驗證用戶身份，強認(rèn)證使用加密方法創(chuàng)建的數(shù)字證書。標(biāo)準(zhǔn)建議只有強認(rèn)證能夠作為提供安全服務(wù)的基礎(chǔ)。強認(rèn)證使用公鑰加密方式，但是X.509并不依賴于使用特殊加密算法，盡管兩個用戶希望認(rèn)證必須支持同一算法。

　　X.500

　　X.500 is an open, distributed, online directory service which is intended to be global in scope. X.500 is a support service for data exchange which includes providing directory support for data communication services specified by other OSI application standards. The X.500 series of standards covers services available to users, the functional model and protocols connecting the component parts of the directory, an information framework and a schema of the information held by the directory, and a mechanism for allowing OSI components to authenticate each other.

　　X.500是一個開放的、分布式的、趨向于全球化的在線目錄服務(wù)。X.500支持?jǐn)?shù)據(jù)交換服務(wù)，該服務(wù)符合OSI模型和其他應(yīng)用協(xié)議下的數(shù)據(jù)傳送的目錄服務(wù)。X.500這一系列標(biāo)準(zhǔn)涵蓋了可用的用戶服務(wù)、連接各組成部分的功能和協(xié)議模型、目錄的消息框架和信息保持、OSI模型中各組成部分彼此授權(quán)的支持等多個方面。

　　X3D

　　X3D is the name under which the development of VRML is continued. X3D is based on XML and is backwards compatible with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different scenarios, from high-end visualizations to lightweight applications.

　　X3D是虛擬現(xiàn)實造型語言(VRML)命名空間的延續(xù)。X3D基于XML并向后兼容VRML。而且X3D的組成、剖面、拓展等特性應(yīng)用范圍可以從高端的開發(fā)到輕量級的開發(fā)，這使得它開發(fā)不同的游戲情節(jié)成為可能。

　　ABNF

　　Internet technical specifications often need to define a format syntax and are free to employ whatever notation their authors deem useful. Over the years, a modified version of BNF, called ABNF, has been popular among many Internet specifications. It balances compactness and simplicity with reasonable representational power.

　　互聯(lián)網(wǎng)技術(shù)規(guī)范經(jīng)常需要定義一種格式化語法并能自由地使用作者認(rèn)為是有用的任何符號。多年來，巴克斯范式(BNF)的一個修訂版，即擴展巴克斯范式(ABNF)，已經(jīng)在許多互聯(lián)網(wǎng)規(guī)范中流行。該版本平衡了壓縮性和簡單性，具有合理的表達(dá)能力。

　　計算機專業(yè)英語文章

　　Shortcut

　　In Microsoft Windows 98,an icon that provides fast access to a program .A fter you create the shortcut ,you see the program's icon on the desktop ,where you can start it quickly by double-clicking the icon.

　　快捷方式

　　在Microsoft Windows 98中提供的對程序進(jìn)行快速訪問的圖標(biāo)。當(dāng)你建立了快捷方式后,你在桌面上就看到了該程序的圖標(biāo),通過雙擊圖標(biāo)你就可以迅速地啟動該程序。

　　計算機英語(2)

　　Shortcut Key

　　A key combination that provides one-stroke access directly to a command or dialog box ,bypassing any intermediate menus.

　　快捷鍵

　　是一組提供直接對命令或?qū)υ捒蛞淮吻脫粼L問的鍵組合,繞過任何中間菜單。

　　計算機英語(3)

　　Signature

　　In electronic mail and UseNet newsgroups ,a brief file (of approximately t hree or four lines )that contains the message sender's name ,organization ,address ,e-mail address ,and (optionally )telephone numbers .You can configure most s ystems to add this file automatically at the end of each message you send .Ne tiquette advises against long ,complicated signatures ,especially when posting to UseNet .In virus-protection utilities ,program code identifiable as belongi ng to a known virus.

　　簽名

　　在電子郵件和UseNet新聞組中,包括消息發(fā)送者的姓名、機構(gòu)、地址、e-mail地址和(任選的)電話號碼的簡要文件(大約3或4行)。你可將多數(shù)系統(tǒng)配置成在你所發(fā)送的每一條消息的最后自動加上這個文件。網(wǎng)上禮儀建議不要有太長太復(fù)雜的簽名,特別是當(dāng)郵送到UseNet時更是這樣。在病毒保護(hù)實用程序中,當(dāng)病毒已知時,程序碼是可以識別的。

　　計算機英語(4)

　　Wait state

　　A microprocessor clock cycle in which nothing occurs .A wait state is programmed into a computer system to allow other components ,such as random-access memory (RAM) ,to catch up with the central processing unit (CPU) .The number of wait states depends on the speed of the processor in relation to the speed of memory .Wait states can be eliminated—resulting in a "zero wait state" machine—by using fast (but expensive )cache memory ,interleaved memory ,page-mode RAM ,or static RAM chips.

　　等待狀態(tài)

　　微處理器不執(zhí)行任何動作的時鐘周期。等待狀態(tài)編入計算機系統(tǒng)中,以使其他部件(如隨機RAM)跟上CPU的速度。等待狀態(tài)的次數(shù)取決于與存儲器速度相關(guān)的處理器速度。通過使用快速(但昂貴)的高速緩沖存儲器、交錯存取存儲器、頁面式RAM或靜態(tài)RAM芯片,等待狀態(tài)可消除,從而產(chǎn)生“零等待狀態(tài)”機。

　　計算機英語(5)

　　Portal

　　A Web site that serves as a gateway to the Internet .A portal which may be a search engine or a directory web page is a collection of links ,content , and services designed to guide users to information they are likely to find interesting —news , weather , entertainment , commerce sites , chat rooms , and so on . Yahoo! ,Excite ,MSN.com ,Infoseek ,AOL ,Lycos and Netscape NetCenter are examples of portals .A web page is the starting point for web surfing .

　　計算機專業(yè)英語文章

　　計算機英語(1)

　　ARPAnet

　　A wide area network (WAN) .A network that connected Department of Defense research sites across America. Created in 1969 with funding from the Advanced Research Projects Agency (ARPA) .Undergoing constant research and development in the early-to mid-1970s,ARPAnet served as the test bed for the development of TCP/IP( the protocols that make the Internet possible ).A Major goal of the ARPAnet project was to increase the military's command and control capability by enabling communication across a variety of physically dissimilar media ,including satellites .An allied goal was to create a robust network capable of withstanding outages ,such as those that might result from a nuclear exchange .ARPAnet met these objectives ,but it also surprised its creators :It was found in short order that most ARPAnet users preferred to use the network for communication ,such as electronic mail and discussion groups .Initially ,the ARPAnet was available only to government research institutes and to universities holding Department of Defense (DoD) research contracts .In 1983,ARPAnet was divided into a high-security military network (Milnet )and an ARPAnet that was recast as a research and development network .Although it formed the foundation of the Internet ,it was decommissioned in 1990.

　　ARPA網(wǎng);阿帕網(wǎng)

　　ARPAnet系一種廣域網(wǎng)(WAN),一種連接整個美國的國防部研究機構(gòu)的網(wǎng)絡(luò)。它是由美國高級研究規(guī)劃署(ARPA)提供資金,于1969年創(chuàng)建的。ARPA網(wǎng)作為開發(fā)TCP/IP(一種使互連網(wǎng)成為可能的協(xié)議)的試驗臺,在70年代的早期到中期就進(jìn)行了不斷的研究和開發(fā)。ARPA網(wǎng)項目的主要目標(biāo)是通過能夠在各種實際不相似的媒介(包括衛(wèi)星)上進(jìn)行通信來提高軍事指揮與控制的能力。一個相關(guān)聯(lián)的目標(biāo)是建立一種能夠耐受故障(諸如那些可能由核交換導(dǎo)致的故障)的健壯網(wǎng)絡(luò)。ARPA網(wǎng)滿足了這些要求,但也令其創(chuàng)建者驚奇的是,立即就發(fā)現(xiàn)大多數(shù)ARPA網(wǎng)用戶更愿意將該網(wǎng)用于通信,如電子郵件和討論組。最初,ARPA網(wǎng)僅用于政府研究機構(gòu)和持有國防部研究合同的大學(xué)。1983年,ARPA網(wǎng)被分成高安全性軍事網(wǎng)(Milnet)和作為一個研究和開發(fā)網(wǎng)絡(luò)而重建的ARPA網(wǎng)。盡管ARPA網(wǎng)構(gòu)成了因特網(wǎng)的基礎(chǔ),但它最終于1990年退役。

　　計算機英語(2)

　　Artifact

　　An unwanted graphic ,usually small ,that remains on a screen after an image is distorted by a mistake ,omission ,or limitation in graphics software or hardware .Artifacts may cause pixels to be dropped or to clump together .Other types of artifacts occur when the quality of a videotape is poor (if metal particles flake off the tape ,for example )or when decompression is faulty.

　　假象

　　由于錯誤、刪除或圖形軟硬件中的局限性,而使圖像失真以后留存在屏幕上的一種不想要的圖形,通常很小。假象可能會造成像素丟失或組合到一起。當(dāng)錄像帶質(zhì)量低劣(例如,如果金屬粒子從磁帶上脫落)或當(dāng)解壓縮出現(xiàn)故障時,就會出現(xiàn)其他類型的假象。

　　計算機英語(3)

　　Access Site

　　Location on a network where users can find data or programs .Each site has a unique name .For example ,at Washington University State Library ,there is an archive database stored on a particular computer .It can be accessed by someone who has logged onto the Internet and entered the name "wuarchive.wustl.edu." A woman in Florida or a man in Beijing can each retrieve the files they need from the database .A site's address generally says something about what kind of organization is offering the data.

　　訪問站點

　　網(wǎng)絡(luò)上的位置,用戶可從那里找到數(shù)據(jù)或程序。每個站點都有一個唯一的名稱。例如,華盛頓大學(xué)州立圖書館有一個存儲在特殊計算機上的檔案數(shù)據(jù)庫,它可由登錄到因特網(wǎng)上訪問并輸入"wuarchive.wust1.edu."這個域名的某個人訪問。佛羅里達(dá)州的一位女士或北京的一位先生可各自從該數(shù)據(jù)庫中檢索他們所需要的文件。一個站點的地址一般告訴什么機構(gòu)在提供這些數(shù)據(jù)。