| 术语 | programmed input/output (I/O) channel |
| 释义 | programmed input/output (I/O) channel 程序控制输入输出通道;［程式规划输出入通道］ A channel between the central processor and an external device which provides the fastest method of operating on data received from peripheral equipment and allows an input directly to the accumulator where the data can be acted on immediately, thus eliminating the need for a memory reference by either the channel or the program, likewise, output data may be sent directly from the accumulator to an external device. 一种中央处理机和外设间的通道,可以提供从外设 接收数据的最快方法,并允许输入直接进入可立即处理的累加器,因此消除了由通道或程序 访问内存的需要。同样,输出数据可以直接从累加器送到外设。 |
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