以国际互联网（INTERNET）为代表的信息高速公路建设方兴未艾，预计到2000年全球网络使用者将超过5亿人。信息技术的发展加快了通信与信息产业的融合，电信、广播通信和计算机通信三大行业互相渗透、互相兼容，“三网合一”成为不可避免的趋势—用户只需在家中拉一条线，就可同 The construction of an information superhighway represented by the Internet is in the ascendant and it is estimated that by the year 2000, the number of Internet users in the world will exceed 500 million. The development of information technology has accelerated the integration of communications and information industries. The three major industries of telecommunications, broadcast communications and computer communications have penetrated each other and are compatible with each other. The “triple play” has become an inevitable trend - users simply pull a line at home, Can be the same