digital linear tape

Computing Dictionary

Digital Linear Tape definition

storage
(DLT) A kind of magnetic tape drive originally developed by DEC and now marketed by Quantum.
DLT drives implement the Digital Lempel Ziv 1 (DLZ1) compression algorithm in a combination of hardware and firmware. They use a popular chip by Stac (now hi/fn) to do the string searching. Counting, sorting and Huffman coding are done in firmware (with hardware support for the Huffman algorithm?).
In April 1997 DLT drives can transfer 5 megabytes per second and can store 35 gigabytes on a single cartridge. Compression might roughly double these figures.
(1997-04-05)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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