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Definition: DAT


(1) For digital asset investment companies, see digital asset treasury.

(2) (DATa) For the file format, see DAT file.

(3) (Dynamic Address Translator) A hardware circuit that converts a virtual memory address into a real address. See virtual memory.

(4) (Digital Audio Tape) An earlier helical scan magnetic tape technology from Sony. Introduced in 1987, DAT was a CD-quality format that wound up being used by musicians and sound studios rather than consumers. A year later, Sony and HP defined the Digital Data Storage (DDS) format for data backup and storage. Sony ceased production of DAT drives in 2005. See helical scan, magnetic tape and ADAT.
              Native
     Type    Capacity

     DDS-1     2GB
     DDS-2     4GB
     DDS-3    12GB
     DDS-4    20GB
     DDS-5    36GB




DAT Cartridge
Looking similar to an audio cassette, although smaller overall, a 4mm DAT cartridge provided up to 36GB of uncompressed storage.








Helical Scan Formats
These are the helical scan tape formats used for digital storage. See helical scan.