Direct-Access Storage Device


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direct-access storage device

[də¦rekt ¦ak‚ses ′stȯr·ij di‚vīs]
(computer science)
Any peripheral storage device, such as a disk or drum, that can be directly addressed by a computer. Abbreviated DASD.

Direct-Access Storage Device

(hardware)
(DASD) IBM mainframe terminology for a disk drive, in contrast with a tape drive which is a sequential access device.
References in periodicals archive ?
The concept of switching disk subsystems between servers, all running the same operating system, had become a common and widespread practice on mainframe computers by 1970, and was called "shared DASD" (direct-access storage device).

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