Chapter 1 Introduction overview Computer network A communication network is an interconnected system of computers, terminals and other hardware established for the purpose of exchanging information L EHR or service between indIviduals, groups, or institutions 写 www.gxmu.eau.cnwww.gxmu.edu.cn Computer network A communication network is an interconnected system of computers, terminals, and other hardware established for the purpose of exchanging information or service between individuals, groups, or institutions. 工作站 膝上型计算机 以太网 工作站 打印机 扫描仪 服务器 Chapter 1 Introduction overview