simultaneous input /output

An ability that the computers can handle other operations concurrently with input and output operations. Most often this is accomplished using buffers that hold input /output data and information as it arrives (and on a temporary basis), while other operations are executed by the CPU. Thus, the computer need not wait for data to arrive from the very slow I /O units or terminals and may instead take it in massive quantities from the faster part of the buffer.; 計算機進行輸入輸出操作的同時具有處理其它操作的能力。通常是使用緩沖器把輸入輸出 數據和信息暫時保存下來,其它操作則由中央處理機(CPU)執行,這樣,計算機就不必等 待從速度很慢的輸入輸出設備(或終端)來的數據,而可以從快速的緩沖器得到數據。