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、軟體開發、資訊處理、網路通訊、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使用者身份，強認證使用加密方法建立的數字證書。標準建議只有強認證能夠作為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演算法，儘管兩個使用者希望認證必須支援同一演算法。
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、分散式的、趨向於全球化的線上目錄服務。X.500支援資料交換服務，該服務符合OSI模型和其他應用協議下的資料傳送的目錄服務。X.500這一系列標準涵蓋了可用的使用者服務、連線各組成部分的功能和協議模型、目錄的訊息框架和資訊保持、OSI模型中各組成部分彼此授權的支援等多個方面。
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)名稱空間的延續。X3D基於XML並向後相容VRML。而且X3D的組成、剖面、拓展等特性應用範圍可以從高階的開發到輕量級的開發，這使得它開發不同的遊戲情節成為可能。
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.
網際網路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為是有用的任何符號。多年來，巴克斯正規化(BNF)的一個修訂版，即擴充套件巴克斯正規化(ABNF)，已經在許多網際網路規範中流行。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中提供的對程式進行快速訪問的圖示。當你建立了快捷方式後,你在桌面上就看到了該程式的圖示,通過雙擊圖示你就可以迅速地啟動該程式。
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方塊一次敲擊訪問的鍵組合,繞過任何中間選單。
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,包括訊息傳送者的姓名、機構、地址、e-mail地址和(任選的)電話號碼的簡要檔案(大約3或4行)。你可將多數系統配置成在你所傳送的每一條訊息的最後自動加上這個檔案。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。在病毒保護實用程式中,當病毒已知時,程式碼是可以識別的。
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儲存器速度相關的處理器速度。通過使用快速(但昂貴)的高速緩衝儲存器、交錯存取儲存器、頁面式RAM或靜態RAM晶片,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),一種連線整個美國的國防部研究機構的網路。它是由美國高階研究規劃署(ARPA)提供資金,於1969年建立的。ARPA網作為開發TCP/IP(一種使互連網成為可能的協議)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網專案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)上進行通訊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)的健壯網路。ARPA網滿足了這些要求,但也令其建立者驚奇的是,立即就發現大多數ARPA網使用者更願意將該網用於通訊,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)和作為一個研究和開發網路而重建的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、刪除或圖形軟硬體中的侷限性,而使影象失真以後留存在螢幕上的一種不想要的圖形,通常很小。假象可能會造成畫素丟失或組合到一起。當錄影帶質量低劣(例如,如果金屬粒子從磁帶上脫落)或當解壓縮出現故障時,就會出現其他型別的假象。
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
網路上的位置,使用者可從那裡找到資料或程式。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儲存在特殊計算機上的檔案資料庫,它可由登入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資料庫中檢索他們所需要的檔案。一個站點的地址一般告訴什麼機構在提供這些資料。
