In microcomputers, a peripheral storage device into which a floppy disk is inserted and from which data may be read or written to. The unit is linked or interfaced to a microcomputer via a floppy disk controller.

• 在微型计算机中,一种可插入软磁盘的外部存储装置,从该装置可以读出数据,也可写入数据。软磁盘装置可经软磁盘控制器链接到或接口到微型计算机上。