Most planetariums used Apple IIs to control their projectors and other equipment .
Well into the 1990s every clean - room ( the super-clean facility where spacecraft are prepared for flight ) at the Kennedy Space Center used an Apple II to monitor the environment and air quality .
Most planetariums used Apple II IIs to control Apple II 's projectors and other equipment .
Well into the 1990s every clean - room ( the super-clean facility where spacecraft are prepared for flight ) at the Kennedy Space Center used an Apple II to monitor the environment and air quality .