计算机专业英语因特网服务句子解释-软件水平考试

来源: 作者: 发布时间:2007-08-07  

Internet is the largest global internetworkconnecting tens of thousand of networks  worldwide and having aculturethat focuses on research and standardization based on real-life useMany leading-edge network technologies come from the Internet communityThe most popular and widespread Internet application services include

    1.WWWword wide web) 2.Electronic mail 3.File Transfer ProtocolFTP

 

1WWWword wide web

  WWW is a large network of Internet servers providing hypertext and other services to terminals[3] running client applications such as a browser

    WWW enables users to searchaccessand download information from a worldwide series of networked servers where information is dynamically interlinkedA Web client passes a users request for information to a serverusually by way of a Web browser

  Browser is a GUI-based hypertext client applicationused to access bypertext documents and other services located on innumerable remote servers throughout the WWW and Internet

 

2Electronic mail

  There are two kinds of E-mail protocol used in the InternetOne is Simple Mail Transfer ProtocolSMTPwhich accepts incoming connections and copies messages from them into the appropriate mailboxes[8]Another is Post Office Protocol-3POP3which fetches E-mail from the remote mailbox and stores it on the users local machine to be read later

 

3File Transfer ProtocolFTP

  FTP is an application protocolpart of the TCP/IP protocol stackused for transferring files between network nodesThe TCP/IP protocols include a file transfer application program that allows users to send or receive arbitrarily large files of programs or data

 

4Telecommunication networkTelnet

  Telnet is a standard terminal emulation protocol in the TCP/IP protocol stack

    因特网是最大的全球互联网,连接了全世界范围内数以万计的网络,并已从真实生活出发形成了专注于研究和标准化的“文化”,许多前沿网络技术都是来自因特网社会。应用最广的因特网应用服务包括如下方面。

    1.万维网  2.电子邮件  3.文件传送协议(FTP 4.远程通信网(Telnet

 

 

1)万维网

  万维网是一种提供因特网服务的大型网络。

  万维网允许用户从动态链接信息的全球服务器系列中搜索、访问和下载信息,Web客户通常通过Web浏览器,向服务器传送用户需要信息的请求。

  浏览器是一种基于图形用户界面的超文本客户程序,通过浏览器可以对万维网和因特网上无数个远程服务器上的超文本文件和其他服务进行访问。

 

 

 

2)电子邮件

  在因特网上有两种电子邮件协议,一是简单邮件传送协议SMTP,它接收送达的邮件并从中复制报文到相应的邮箱,另一个邮件协议是邮局协议POP3,它从远程邮箱中取出电子邮件并将其存储在用户本地机器上,以便以后阅读。

 

 

3)文件传送协议(FTP

FTPTCP/IP协议栈中的应用协议,用来在网络结点间传送文件。TCP/ IP协议包含一种文件传送应用程序,它允许用户发送和接收任意规模的程序或数据文件。

 

 

4)远程通信网(Telnet

  它是TCP/ IP协议栈中的标准终端仿真协议。

 



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