Williams System 4
Model Number : 486

Main CPU : M6800 (@ 895 KHz)
Sound CPU : M6808 (@ 894.75 KHz)
Sound Chip : DAC

First game from any manufacturer to use 'Flash Lamps'. Flash was also the first machine to have a dynamic background sound during gameplay.

19,505 units were produced.

A subsequent game called 'Super Flash' was contemplated in 1986 as a 'sequel' but never made it as far as the drawing board.