internet-----外文翻译（全文）.doc

The Internet also known as the Net is the world's largest computer network . “ And what is a network”? You may ask. A computer network is basically a bunch of computers booked together somehow. In concept, it's sort of like a radio or TV network that connect a bunch of radio or TV stations.
Some computer networks consist of a central computer and a bunch of remote stations that report to it-a central airlinereservation computer, for example, with thousands of terminals at airports and travel agencies. Other, including the Internet, permit any computer on the network to communicate with any other.
The Internet is probably the most open network in the world. Thousands of computers provide facilities that are available to anyone who has Net access. This situation is unusual-most networks are very restrictive in what they allow users to do and require a pecific arrangements and passwords for each service. Although a few
pay services exist, the vast majority of Internet services are free for the taking , onc


Internet，也叫做Net，是世界上最大的计算机网络。你也许会问：“什么是网络？”计算机网络，简单地说，就是通过某种方法被连在一起的若干计算机。从概念上讲，就像若干无线电台或电视台连成无电线网络或电视网络一样。
某些计算机网络包括一个中心计算机和若干与中心计算机相联的远端的计算机。例如．一台飞机订票系统的中心计算机，就与各个机场和旅行社的上万台终端相连。其它类型的计算机网络，包括Internet,允许网络中每台计算机与另一台计算机通信。
Internet可能是世界上最开放的网络。任何人，只要联入Net，就能利用上万台计算机提供的服务。这种情况是不多见的，很多网络在允许用户使用方面限制性较强，并且对每项服务均有特别安排的口令。尽管有一些服务需要缴费，但绝大多数Internet的服务都是只要你连通了就可免费享受。如果你通过公司、学校还不能进人Internet，你可以付费给Internet访问权提供商来进入Internet。