From The Free On-line Dictionary of Computing (19 January 2023): Direct-Access Storage Device DASD <hardware> (DASD) IBM mainframe terminology for a disk drive, in contrast with a tape drive which is a sequential access device. (1995-03-01)
Direct-Access Storage Device DASD
<hardware> (DASD) IBM mainframe terminology for a disk drive, in contrast with a tape drive which is a sequential access device.
(1995-03-01)
