第6章通信与网络通讯网络的组成“ Any one in the world could be your customer;any one in the world could be your competitor."网络模型NetworkModel:A communication network is any arrangementwhere a sender transmits a message to a receiverover a channel consisting of some type of medium通讯网络的组成 “ Any one in the world could be your customer; any one in the world could be your competitor.” 网络模型 Network Model: A communication network is any arrangement where a sender transmits a message to a receiver over a channel consisting of some type of medium 第6章 通信与网络