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网络可以归纳为局域网和广域网两种。广域网是由无数台电脑和无数个局域网通过光纤、微波等技术连接起来的大型网络,所谓的Internet其实就是目前全球最大的广域网。根据Matrix Information＆ Directory Services(MIDS)公司的推算,到1997年
The network can be summarized as both LAN and WAN. WAN is a large network connected by numerous computers and countless LANs via optical fiber and microwave technology. The so-called Internet is actually the largest wide area network in the world. According to Matrix Information & Directory Services (MIDS) projections, by 1997