计算机及网络技术与控制系统的发展有着紧密的联系。最早在50年代中后期，计算机就已经被应用到控制系统中。60年代初，出现了由计算机完全替代模拟控制的控制系统，被称为直接数字控制（DirectDigitalControl,DDC）。70年代中期，随着微处理器的出现，计算机控制系统进入一个新的快速发展的时期，1975年世界上第一套以微处理为基础的分散式计算机控制系统问世，它以多台微处理器共同分散控制，并通过数据通信网络实现集中管理，被称为集散控制系统
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