有關於計算機的英語短文章
我們的生活已經離不開計算機了，小編今天就給大家整理了有關於計算機的英語，要多多努力纔會學習好英語哦
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。
計算機英語二
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。
計算機英語三
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。
