局部地区网络(Local Natwork)正在得到越来越广泛的重视。这种网络可把一个地区(工厂、学校、研究所或办公大楼内的计算机相互接接起来,互相通讯、共享资源,提高了整个系统的功能。它不占用远距离邮电通信线路,一般也不需要调制解调设备、连接方便、结构灵活,对于实现分布式数据处理及管理自动化都有重要意义。本文主要以C——网络为例、讨论局部地区网络的原理、结构和发展。 Local Natwork is gaining more and more attention. This network can connect computers in one area (factories, schools, research institutes or office buildings) to each other to share resources and improve the functions of the entire system. It does not occupy long distance post and telecommunications lines and generally does not The need for modem equipment, convenient connection, flexible structure, for the realization of distributed data processing and management are of great significance.This paper mainly C - network, to discuss the principle, structure and development of local area networks.