Listen to the deeply cheesy "Apple Boogie" music cassette released by the computer company in 1987

In 1987, Apple Computer released the "Apple Boogie," a cheesy cassette collection of marketing tunes and parodies apparently given away free at an internal sales meeting. The standout track is "Blue Busters," a "Ghostbusters" parody targeting Apple's big competitor at the time, IBM.

Related, a "Blue Busters" music video used to hype up the audience at an earlier sales meeting: