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- Direct_access_storage_device abstract "In mainframe computers and some minicomputers, a direct access storage device, or DASD /ˈdæzdiː/, is any secondary storage device in which "each physical record has a discrete location and a unique address."Historically, IBM introduced the term to cover three different device types: disk drives magnetic drums data cellsCurrently CD-ROM and DVD-ROM devices are also classified as DASD.The direct access capability, occasionally and incorrectly called random access (although that term survives when referring to memory or RAM), stands in contrast to sequential access used in tape drives. A record on DASD can be accessed without having to read through intervening records from the current location, whereas reading anything other than the "next" record on tape requires skipping over intervening records, and requires a proportionally long time to access a distant point in a medium. The storage class of DASD includes both fixed and removable media.The access methods for DASD are sequential, indexed and direct.".
- Direct_access_storage_device wikiPageID "54691".
- Direct_access_storage_device wikiPageRevisionID "592334621".
- Direct_access_storage_device hasPhotoCollection Direct_access_storage_device.
- Direct_access_storage_device subject Category:IBM_mainframe_operating_systems.
- Direct_access_storage_device subject Category:IBM_storage_devices.
- Direct_access_storage_device type Artifact100021939.
- Direct_access_storage_device type Device103183080.
- Direct_access_storage_device type IBMStorageDevices.
- Direct_access_storage_device type Instrumentality103575240.
- Direct_access_storage_device type MemoryDevice103744840.
- Direct_access_storage_device type Object100002684.
- Direct_access_storage_device type PhysicalEntity100001930.
- Direct_access_storage_device type Whole100003553.
- Direct_access_storage_device comment "In mainframe computers and some minicomputers, a direct access storage device, or DASD /ˈdæzdiː/, is any secondary storage device in which "each physical record has a discrete location and a unique address."Historically, IBM introduced the term to cover three different device types: disk drives magnetic drums data cellsCurrently CD-ROM and DVD-ROM devices are also classified as DASD.The direct access capability, occasionally and incorrectly called random access (although that term survives when referring to memory or RAM), stands in contrast to sequential access used in tape drives. ".
- Direct_access_storage_device label "Direct Access Storage Device".
- Direct_access_storage_device label "Direct access storage device".
- Direct_access_storage_device label "Direct access storage device".
- Direct_access_storage_device sameAs Direct_Access_Storage_Device.
- Direct_access_storage_device sameAs Direct_access_storage_device.
- Direct_access_storage_device sameAs 직접_접근_기억_장치.
- Direct_access_storage_device sameAs m.0f89j.
- Direct_access_storage_device sameAs Q1227430.
- Direct_access_storage_device sameAs Q1227430.
- Direct_access_storage_device sameAs Direct_access_storage_device.
- Direct_access_storage_device wasDerivedFrom Direct_access_storage_device?oldid=592334621.
- Direct_access_storage_device isPrimaryTopicOf Direct_access_storage_device.