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一、WWW概述 WWW是“环球网”(World Wide Web)的简称,是当前IN-ternet上最受欢迎、最为流行、最新的信息检索服务程序。WWW起初是由欧洲粒子物理实验室CERN(the European Lab-oratory for Particle Physics)的科学家们为了让分散在世界各地的研究小组能够很快地共享最新的研究信息而研制的。它是一种基于超文本(Hypertext)方式的信息查询工具。WWW通过这种超文本的方式,把全世界Internet上不同地点的相关信息有机地结合起来,并提供了在信息网络内从一个文献迅速转移到另一个文献的手段。WWW提供一种友好的信息查询接口和统一的用户界面,用户仅需提出简单的查询要求,然后根据系统返回的结果决定下一步的行动,而具体到什么地方查询及如何查询则由WWW自动完成。对用户来讲,可以不必关心信息资源究竟在什么地方。此外,Internet的很多其他功能,如E~mail、Telnet、FTP、WALS等,都可通过WWW方便地实现。 由于WWW功能强大,而且使用起来很方便,所以一出现就得到了广泛的应用,并且不断有新的、更加友好的客户端软件推出。到1994年夏天,WWW已成为访问Intrenet资源最为流行的手段,WWW服务器正以每年2000％以上的速度增长,总数已经超过1.6万台。我国亦于1994年春在北京正式建立了Internet上的WWW服务器。
WWW Overview WWW is short for “World Wide Web” and is currently the most popular, the most popular and up-to-date information retrieval service on IN-ternet. The WWW was first developed by scientists at CERN (the European Laboratory for Particle Physics) at the European particle physics laboratory to allow research teams scattered around the world to quickly share up-to-date research information. It is a Hypertext based information query tool. Through this hypertext approach, WWW organically combines relevant information from different locations around the world on the Internet and provides a means of rapidly moving from one document to another within an information network. WWW provides a friendly information query interface and a unified user interface. Users only need to make simple query requirements, and then decide on the next action according to the result returned by the system. Where to find and how to query are automatically completed by the WWW . For users, you do not have to worry about where the information resources are. In addition, many other Internet functions, such as E-mail, Telnet, FTP, WALS, etc., are easily accessible via the WWW. Because WWW is powerful and easy to use, WWW is widely used as it emerges, and new and more client-friendly software continues to be introduced. By the summer of 1994, the WWW had become the most popular means of accessing Intrenet resources. The WWW servers are growing at more than 2000% annually, for a total of more than 16,000 units. Our country also formally established the WWW server on the Internet in Beijing in the spring of 1994.