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介绍了计算机局域网的网络拓扑结构、工作原理、与各种终端及外部设备的连接方法;描述了网络操作系统的工作情况以及网络的安全与管理。
Introduces the network topology of computer LAN, working principle, connection methods with various terminals and external devices, describes the operation of network operating system and network security and management.