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局部网络是从分布式处理中发展起来的新技术领域,是计算机科学与应用中的新兴学科分支。它与远程网络和多机系统相比,虽历史不长,但发展极快;从Xerox研究中心开始研究Ethernet算起,仅10来年时间,已有很多产品投入市场,销售额达数百万美元,局部网络技术虽然尚未成熟,但得以如此迅速的发展,这是其他技术不能比拟的。其主要原因:一是从功能卫看,它兼有多机系统和远程网络的优点;二是从成本上看,它节省了MODEM和远程电缆等通信设施,性能价格比优于远程网络;三是从技术上看,它避免了多机系统的复杂设计,缩短了研制周期,又可继承远程网络设计中已采用
Local network is a new field of technology developed from distributed processing, and is a new branch of discipline in computer science and application. Compared to remote networks and multi-machine systems, although not long history, but the rapid development; Starting from Xerox Research Center to study Ethernet, only 10 years time, many products have been put on the market, with sales of millions of dollars Although the local network technology is not yet mature, it has been able to develop at such a rapid rate that other technologies can not match. The main reason: First, from the functional point of view, it combines the advantages of multi-machine systems and remote networks; the second is from the cost point of view, it saves communication facilities such as MODEM and remote cables, the cost performance is better than the remote network; three From a technical point of view, it avoids the complex design of multi-machine system, shortening the development cycle, but also inherited the remote network design has been used