Computer Facts in Five
Platforms:
Apple II,
Atari 8-bit,
IBM PC/Compatibles

Links and other resources
You can find more information on Computer Facts in Five on these other sites.-
MobyGames
MobyGames has more information on Facts in Five. -
Wikipedia
Wikipedia article on the original version of Facts in Five. -
Atarimania (Atari 400/800)
More information on the Atari 8-bit version of Computer Facts in Five.