August-September 1963: Audio cassette

The compact cassette, made by the Dutch electronics company Philips, was introduced at the Berlin Radio Show (also known as the German Radio Exhibition or Internationale Funkausstellung), which ran from August 30 through September 8. Its initial function was as a recording device; only later did prerecorded music become available.
* History (from Vintage Cassettes): @

* Entry from "Encyclopedia of Recorded Sound, Volume 1" (1993): @
* "Cassette Tapes Are Almost Cool Again" (Motherboard, August 2013): @
* "A History of Magnetic Audio Tape" (website of Diana Cook): @

* "Music and Technology in the Twentieth Century" (Johns Hopkins Press, 2000): @ 

---