DAT

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DAT

(computer science)

DAT

(1)

DAT

(2)

DAT

(1) (DATa) See DAT file.

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

(3) (Digital Audio Tape) A magnetic tape technology used for backing up data. DAT uses 4mm cartridges that look like thick audio cassettes and conform to the DDS (Digital Data Storage) standard. DAT tape libraries hold from a handful to several hundred cassettes. DAT was initially a CD-quality audio format. It was thought to replace analog audiotapes for consumers, but wound up being used by professional musicians and sound studios. In 1988, Sony and HP defined the DDS format and quality level for computer storage. Like videotapes, DAT uses helical scan recording. See magnetic tape and ADAT.

Type    Native Capacity
  DDS-1    2GB
  DDS-2    4GB
  DDS-3   12GB
  DDS-4   20GB
  DDS-5   36GB


DAT Cartridge
DAT provides up to 36GB of native storage in a cartridge that is a little thicker, but smaller overall than an audio cassette.







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


Helical Scan Formats
These are the helical scan tape formats used for digital storage. See helical scan.
References in periodicals archive ?
With the FireWire interface, the DDS-3 drive can be quickly connected to the native FireWire ports that are standard with Macintosh(R) G3, G4 and iMac DV systems.
With a capacity of 24GB, most organizations can use our new FireWire DDS-3 solution without having to swap tapes and can schedule automated, unattended backups.
In addition to fast backup and recovery, the LaCie DDS-3 provides network managers with unparalleled connectivity and compatibility as well as a complete family of diagnostic tools.
The DDS Integration Models provide basic configurations for small to mid-sized system integration and feature internal or external DDS-2 or DDS-3 drives, one cleaning cartridge, a power cord (external version only), a user's manual and a two-year limited warranty.
The eight-cartridge, external DDS-3 autoloader offers up to 192GB of capacity.
The drive will be designed to be backward-compatible, read-compatible with DDS-DC and read- and write-backward-compatible with DDS-2 and DDS-3 format tapes.
Explaining the success of HP's DDS-3 products, Jack Trautman, general manager of HP's Computer Peripherals Bristol division said, "The DDS-3 standard combines an unprecedented capacity with a transfer rate fast enough to ensure that nightly backups are completed with minimal disruption to the network.
This agreement demonstrates the versatility of the DDS-3 format and also the quality of our SDT series drives, which are currently the fastest DDS-3 drives available on the market," said Douglas Stringer, marketing manager of tape streamer products for Sony Electronics' Computer Components and Peripherals Group.
One such augmentation was the inclusion of the Sony SDT-9000 Audio Feature firmware, a SCSI protocol that supports both the reading and writing of DAT audio tapes and the transfer of audio data to and from the DDS-3 drives.
The incorporation of these DDS-3 drives in our systems enhances the digital-audio applications available, such as those used in the automotive, aerospace, multimedia, and entertainment industries.
SDT-9000 Internal and SDT-S9000 External DDS-3 Drives: The SDT-9000 series are 4mm DDS-3 tape drives which offer a capacity of 12GB (24GB with compression) and a transfer rate of 1.
The lineup includes AIT 8mm, DTF and DDS-3 data cartridges, all based on Sony innovations.