http://en.wikipedia.org/wiki/Compact_Cassette - The Compact Cassette, often
referred to as audio cassette, cassette tape, cassette, or simply tape, is
a magnetic tape sound recording format. Although designed originally for
dictation, improvements in fidelity led the Compact Cassette to supplant
the Stereo 8-track cartridge and reel-to-reel tape recording in most
non-professional applications.[1] Its uses ranged from portable audio to
home recording to data storage for early microcomputers. Between the early
1970s and the late 1990s, the cassette was one of the two most common
formats for prerecorded music, first alongside the LP and later the Compact
Disc.

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