In part one we asked if the compact disc was dead. Here we offer a timeline of the Compact Disc's history - and prehistory - from 180 years ago to the present.
The Big Bang? Beethoven! In a way, it all begins with his Symphony No. 9 (see 1979).
French mathematician Augustin-Louis Cauchy proposes a sampling theorem that converts a signal into a numerical sequence.
Thomas Edison invents the wax-cylinder phonograph. Finally, a use for album-cover art.
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