計算機專業英語文章
計算機專業英語課程綜合了計算機專業知識和英語語言運用能力,是計算機應用、軟件開發、信息處理、網絡通信、多媒體設計、電子商務等專業學生的必修課程。下面是本站小編帶來的計算機專業英語文章，歡迎閱讀!
計算機專業英語文章
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證，簡單認證和強認證，簡單認證基於使用一個密碼驗證用戶身份，強認證使用加密方法創建的數字證書。標準建議只有強認證能夠作爲提供安全服務的基礎。強認證使用公鑰加密方式，但是X.509並不依賴於使用特殊加密算法，儘管兩個用戶希望認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、分佈式的、趨向於全球化的在線目錄服務。X.500支持數據交換服務，該服務符合OSI模型和其他應用協議下的數據傳送的目錄服務。X.500這一系列標準涵蓋了可用的用戶服務、連接各組成部分的功能和協議模型、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是虛擬現實造型語言(VRML)命名空間的延續。X3D基於XML並向後兼容VRML。而且X3D的組成、剖面、拓展等特性應用範圍可以從高端的開發到輕量級的開發，這使得它開發不同的遊戲情節成爲可能。
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.
互聯網技術規範經常需要定義一種格式化語法並能自由地使用作者認爲是有用的任何符號。多年來，巴克斯範式(BNF)的一個修訂版，即擴展巴克斯範式(ABNF)，已經在許多互聯網規範中流行。該版本平衡了壓縮性和簡單性，具有合理的表達能力。
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中提供的對程序進行快速訪問的圖標。當你建立了快捷方式後,你在桌面上就看到了該程序的圖標,通過雙擊圖標你就可以迅速地啓動該程序。
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對話框一次敲擊訪問的鍵組合,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 can configure most s ystems to add this file automatically at the end of each message you send tiquette advises against long ,complicated signatures ,especially when posting to UseNet 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,包括消息發送者的姓名、機構、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)。你可將多數系統配置成在你所發送的每一條消息的最後自動加上這個文件。網上禮儀建議不要有太長太複雜的簽名,特別是當郵送到UseNet時更是這樣。在病毒保護實用程序中,當病毒已知時,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) number of wait states depends on the speed of the processor in relation to the speed of memory 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
微處理器不執行任何動作的時鐘週期。等待狀態編入計算機系統中,以使其他部件(如隨機RAM)跟上CPU的速度。等待狀態的次數取決於與存儲器速度相關的處理器速度。通過使用快速(但昂貴)的高速緩衝存儲器、交錯存取存儲器、頁面式RAM或靜態RAM芯片,等待狀態可消除,從而產生“零等待狀態”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 , ,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) rgoing 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 allied goal was to create a robust network capable of withstanding outages ,such as those that might result from a nuclear exchange net 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 ially ,the ARPAnet was available only to government research institutes and to universities holding Department of Defense (DoD) research contracts 1983,ARPAnet was divided into a high-security military network (Milnet )and an ARPAnet that was recast as a research and development network ough it formed the foundation of the Internet ,it was decommissioned in 1990.
ARPA網;阿帕網
ARPAnet係一種廣域網(WAN),一種連接整個美國的國防部研究機構的網絡。它是由美國高級研究規劃署(ARPA)提供資金,於1969年創建的。ARPA網作爲開發TCP/IP(一種使互連網成爲可能的協議)的試驗檯,在70年代的早期到中期就進行了不斷的研究和開發。ARPA網項目的主要目標是通過能夠在各種實際不相似的媒介(包括衛星)上進行通信來提高軍事指揮與控制的能力。一個相關聯的目標是建立一種能夠耐受故障(諸如那些可能由核交換導致的故障)的健壯網絡。ARPA網滿足了這些要求,但也令其創建者驚奇的是,立即就發現大多數ARPA網用戶更願意將該網用於通信,如電子郵件和討論組。最初,ARPA網僅用於政府研究機構和持有國防部研究合同的大學。1983年,ARPA網被分成高安全性軍事網(Milnet)和作爲一個研究和開發網絡而重建的ARPA網。儘管ARPA網構成了因特網的基礎,但它最終於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 facts may cause pixels to be dropped or to clump together r 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
由於錯誤、刪除或圖形軟硬件中的侷限性,而使圖像失真以後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。當錄像帶質量低劣(例如,如果金屬粒子從磁帶上脫落)或當解壓縮出現故障時,就會出現其他類型的假象。
計算機英語(3)
Access Site
Location on a network where users can find data or programs site has a unique name example ,at Washington University State Library ,there is an archive database stored on a particular computer can be accessed by someone who has logged onto the Internet and entered the name "." 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
網絡上的位置,用戶可從那裏找到數據或程序。每個站點都有一個唯一的名稱。例如,華盛頓大學州立圖書館有一個存儲在特殊計算機上的檔案數據庫,它可由登錄到因特網上訪問並輸入"."這個域名的某個人訪問。佛羅里達州的一位女士或北京的一位先生可各自從該數據庫中檢索他們所需要的文件。一個站點的地址一般告訴什麼機構在提供這些數據。
