The World Wide Web

The World Wide Web

万维网

The World Wide Web is an architectural framework for accessing linked documents spread out over thousands of machines all over the Internet.

 译：万维网是一个用来访问传播在全部因特网中的数以千计的机器中链接的文档的体系结构框架。

 

Since the Web is basically a client-server system, we discuss both the client (i.e. user) side and the server side.

 译：由于Web基本上是一个客户-服务器系统，客户端和服务器端我们都讨论。

 

The Client Side

客户端

From the users' point of view, the Web consists of a vast, worldwide collection of documents, usually just called pages for short.

译：从用户的角度来看，Web由巨大的全世界范围收集的通常简称为页的文件组成。

 

Each page may contain links (pointers) to other, related pages, anywhere in the world.

译：每一页可能包含链接到一些在世界任何地方的其他的相关的页面的链接。

 

Users can follow a link (e.g., by clicking on it), which then takes them to the page pointed to.

译：用户可以跟踪一个链接（例如，通过点击它），然后带他们到所指向的页面。

 

This process can be repeated indefinitely, possibly traversing hundreds of linked pages while doing so.

译：这个处理可以无限重复，当我们那么做，可能经过数以百计的链接页面。

 

Pages that point to other pages are said to use hypertext.

译：指向其他一些页面的页面被称为使用超文本。

 

Web pages can combine color desktop publishing, hypertext linking, interactive scripting, sound, video, and even virtual reality.

译：网页可以组合彩色桌面出版，超文本链接，交互脚本，声音，视频甚至虚拟现实。

 

When hypertext pages are mixed with other media, the result is called hypermedia.

译：当超文本与其他媒体混合，其结果就称为多媒体。

 

Pages are viewed with a browser.

译：使用浏览器浏览页面。

 

The Server Sider

服务器端

Every Web site has a server process listening to TCP port 80 for incoming connections from clients (normally browsers).

译：每个站点都有一个服务进程监听从客户端（通常是浏览器）引入的连接的TCP的80端口。

 

After a connection has been established, the client sends one request and the server sends one reply.

译：在一个连接已建立，客户端发送一个请求和服务器发送一个回复。

 

Then the connection is released.

译：然后连接被释放了。

 

The protocol that defines the legal requests and replies is called HTTP.

译：那个定义合法的请求和回复的协议叫做HTTP。

 

A simple example using it may provide a reasonable idea of how Web servers work.

译：一个使用HTTP的简单例子也许可以提供一个Web服务是如何工作的合理的想法。