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 ?
For example, DDS-3, released in 1995, was the third generation drive.
With a suggested price of $1165, the Ecrix drive is priced competitively to DDS-3 and slightly above Exabyte's Mammoth-LT.
The LaCie FireWire DDS-3 provides a compressed capacity of 24GB, sufficient to store the contents of more than 40 CD-ROMs.
The drive is backward read and write compatible with WangDAT DDS-1, DDS-2 and DDS-3 tape drives, and utilizes an Ultra2 Wide SCSI, LVD interface.
In recognition of the success of DDS tape drives and the ramp of recent product generations, HP's one millionth DDS-3 drive was presented to Sun Microsystems.
The LANBacker solutions also include AIT and DDS-3 autoloaders to boost potential storage capacity to 200GB (AIT autoloader) and 192GB (DDS-3 autoloader) compressed, respectively.
Hewlett Packard's SureStore DDS-3 drive is posted on Tecmar's web site at www.
25-inch bezel -- and external DDS-2 and DDS-3 drives, the necessary accessories, and a selection of backup and archival software from Computer Associates, including ARCsolo(R), ARCserve(R) 6.
This new drive offers a significant shift in backup performance, allowing one to archive up to 40GB of compressed data in a six-hour shift, twice that of the DDS-3 format.
The format is based on technology developments that greatly increase the capacity and transfer rate of the current DDS-3 format.
Reflecting the successful launch of DDS-3 technology in the latter half of 1996, the increase also is attributed to the continued strong demand for DDS-2.