serial input /output interface

In computer, a device that accepts serial information from a peripheral device,e.g.,cassette or keyboard, and presents it to the computer, and vice versa.; 計算機中的一種設備,接收來自于外部設備(如盒式磁帶機或鍵盤)的串行信息再發送給計算機,也可從計算機接收 信息再發送給外圍設備。