计算机网络，是指将地理位置不同的具有独立功能的多台计算机及其外部设备，通过通信线路连接起来，在网络操作系统，网络管理软件及网络通信协议的管理和协调下，实现资源共享和信息传递的计算机系统。-Computer networks, refers to the location of different multiple computers and peripheral equipment, having individual functions, connected through a communication line, in the network operating system, management and coordination of network management software and network communication protocols, resource sharing and The computer system of information transfer.