当前,一个兴建“信息高速公路”的热潮正席卷美国、日本和西欧等发达国家。这样一个耗资巨大的工程,在发达国家需要10到20年时间,对于全世界而言,更是一个世纪工程。在这一工程完成之前,目前已联系着全世界137个国家和地区,2200万以上用户的最大的国际计算机互联网络Internet将继续发挥其重要作用。在Internet上,时刻传送着大量各种 At present, a boom in building the “information superhighway” is sweeping the developed countries such as the United States, Japan and Western Europe. Such a costly project, which takes 10 to 20 years in developed countries, is a century-long project for the rest of the world. Before the project was completed, the Internet, the largest international computer network with more than 22 million users, has been linked to the Internet in 137 countries and territories around the world and will continue to play an important role. On the Internet, there are a myriad of different kinds