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词汇
DCM
释义
DCM
资料通信多工器(=data communication multiplexer;data channel multiplexer)
对电脑的资料中断能力进行扩充,使得多个输入/输出设备通过记忆体缓冲暂存器直接向主记忆体传输资料。多工器按照预先设置的优先关系及时地对同时产生的中断请求提供服务。
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