Digital Linear Tape
<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 encoding 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)
Nearby terms:
Digital Express Group, Inc. « Digital Lempel Ziv 1 «
Digital Library Initiative « Digital Linear Tape
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