输入和外面的放如在计算机和使用者(操作员)之间的接口次要系统服务。
The input and out put subsystem serves as interface between the computer and the user (operator).
它由分布式网络 (INFI NET) ,过程控制单元 (PCU) ,操作员接口站 (WSA) ,工程师工作站 (EWS)以及计算机接口单元 (CIU)等组成。
It is made up of distributing network (INFI NET), process control unit(PCU), operator interface station (WSA), engineering work station (EWS) and computer interface unit (CIU).
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