1) Audio storage
Found on
https://www.crosswordclues.com/clue/microcassette
A Microcassette (often written generically as microcassette) is an audio storage medium introduced by Olympus in 1969. It uses the same width of magnetic tape as the Compact Cassette but in a much smaller container. By using thinner tape and half or a quarter the tape speed, microcassettes can offer comparable recording time to the compact cassett...
Found on
http://en.wikipedia.org/wiki/Microcassette
No exact match found.
