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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". The term was coined by IBM to describe devices that allowed random access to data, the main examples being drum memory and hard disk drives. Later, optical disc drives and flash memory…

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Direct-access storage device

Nodes47
Edges46
Triples15
Avg. degree1.96
Density0.042553
Components1

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Direct-access storage device

Top relations

related to Terminology · 13
Direct-access storage device → An, At, DASD, Data File Handbook, File, Files, From, Google, IBM, IBM System/360 System Summary, IBM's, IBM's March, The

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Important terminology

dasd access devices storage fba ibm data channel device record physical methods ckd 360 block records term drives use address

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
a magnetic tape driveinstance ofoptical disc drives and flash memory units are also classified as DASD.The term DASD contrasts with sequential access storage device0.80text
and unit record equipment such as a punched card deviceinstance ofoptical disc drives and flash memory units are also classified as DASD.The term DASD contrasts with sequential access storage device0.80text
Direct-access storage devicerelated to TerminologyIBM0.60section
Direct-access storage devicerelated to TerminologyIBM System/360 System Summary0.60section
Direct-access storage devicerelated to TerminologyFile0.60section
Direct-access storage devicerelated to TerminologyDASD0.60section
Direct-access storage devicerelated to TerminologyFiles0.60section
Direct-access storage devicerelated to TerminologyAt0.60section
Direct-access storage devicerelated to TerminologyIBM's0.60section
Direct-access storage devicerelated to TerminologyAn0.60section
Direct-access storage devicerelated to TerminologyIBM's March0.60section
Direct-access storage devicerelated to TerminologyData File Handbook0.60section

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