Direct-access storage device

（重定向自Direct Access Storage Device）

A direct-access storage device (DASD) pronounced /ˈdæzdiː/) is a secondary storage device in which "each physical record has a discrete location and a unique address." IBM developed DASDs for use with mainframe computers and some minicomputers. Disk drives, magnetic drums, data cells and optical disc drives are all classified as DASDs.

单词	Direct Access Storage Device
释义	Direct Access Storage Device 英语百科 Direct-access storage device （重定向自Direct Access Storage Device） A direct-access storage device (DASD) pronounced /ˈdæzdiː/) is a secondary storage device in which "each physical record has a discrete location and a unique address." IBM developed DASDs for use with mainframe computers and some minicomputers. Disk drives, magnetic drums, data cells and optical disc drives are all classified as DASDs.
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