cassette

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cassette

1. 
a. a plastic container for magnetic tape, as one inserted into a tape deck
b. (as modifier): a cassette recorder
2. Photog another term for cartridge
3. Films a container for film used to facilitate the loading of a camera or projector, esp when the film is used in the form of a loop
4. Biology the injection of genes from one species into the fertilized egg of another species
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

cassette

[kə′set]
(engineering)
A light-tight container designed to hold photographic film or plates.
(engineering acoustics)
A small, compact container that holds a magnetic tape and can be readily inserted into a matching tape recorder for recording or playback; the tape passes from one hub within the container to the other hub.
(graphic arts)
A double-core container designed to hold processed roll microfilm for inserting into a reader, reader-printer, or other retrieval device.
(mycology)
In yeast, any of the sites lying in tandem that contain nucleotide sequences that can be substituted for one another.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

cassette

A removable magnetic tape storage module that contains supply and take-up reels in the same housing. Most earlier audio, video and backup tapes were housed in cassettes, although the surviving archival tape technology is a single reel cartridge (see LTO). See single-hub cartridge, VCR, audio cassette and microcassette.


Supply and Take-up Reels
Cassettes always have two reels. Contrast with tape cartridge.
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