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- Created 2012-03-02
, often written
, is a
tape cassette format
in 1967. It is used primarily in
s and was also employed as a data storage for the
home computer. Unlike the
, also designed by Philips, and the later
, introduced by
, the Mini-Cassette does not use a
drive system; instead, the tape is propelled past the
by the reels. This is mechanically simple and allows the cassette to be made smaller and easier to use, but produces a system unsuited to any task other than voice recording, as the tape speed is not constant (averaging 2.4 cm/s) and prone to
. However, the lack of a capstan and a pinch roller drive means that the tape is well-suited to being repeatedly shuttled forward and backward short distances as compared to microcassettes, leading to the Mini-Cassette's continuing use in the
s of dictation and
, where fidelity is not critical, but robustness of storage is, and where analog media are still widely preferred.
A smaller version of the Mini-Cassette was later introduced that could be used in a standard player using an adaptor; however, this did not become widespread.
A very similar (but incompatible) cassette format was produced by
(the HP82176A Mini Data Cassette) for data storage in their HP82161A tape drive, which, like other minicassettes, did not use a capstan.
from Wikipedia (last updated: 23 May), licensed under
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Philips Speech Processing site
Brief description of the Hewlett Packard 82161A tape drive
Discussion about HP82176A tapes and second-source alternatives
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