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世界网络发展的趋势是电信网、有线电视网和计算机互联网都在努力向宽带化、综合业务化方向发展,相互渗透、互相融合,成为综合多媒体网络。三种网络之间的界限越来越模糊,将共同构造信息高速公路的网络基础设施。 本世纪80年代以来,全世界都在关注如何充分利用有线电视网的宽带资源,并且在交互式改造的基础上开展数据业务,Internet/Web访问业务和各种增值业务。毋容置疑,交互式有线电视是宽带网的重要解决方案之一,它是Internet宽带接入网的有力竞争者,在发展主干Internet网方面存在广阔的前景。据1996年Yan KeeGroup的统计,在Internet业务中,电子商务占46％,消费娱乐占41.5％,各类增
The trend of the development of the world’s networks is that telecom networks, cable networks and computer Internet are all trying their best to develop into a broadband-based and integrated business. They intertwine with each other and become integrated multimedia networks. The boundaries between the three networks are increasingly blurred and will jointly construct the network infrastructure of the information freeway. Since the 1980s, the world has been paying attention to how to make full use of the broadband resources of the cable television network and carrying out data services, Internet / Web access services and various value-added services based on interactive transformation. There is no doubt that interactive cable TV is one of the important solutions for broadband networks. It is a strong competitor to Internet broadband access networks and has broad prospects for developing backbone Internet networks. According to Yan KeeGroup’s statistics in 1996, in the Internet business, e-commerce accounted for 46%, consumer entertainment accounted for 41.5%, all kinds of increased