Sound hardware

DISCRETE

7 generated machines share this fact.

Space Invaders / Space Invaders MTaito / Midway · 1978Asteroids (rev 4)Atari · 1979Galaxian (Namco set 1)Namco · 1979Phoenix (Amstar, set 1)Amstar · 1980Donkey Kong (US set 1)Nintendo of America · 1981Qix (Rev 2)Taito America · 1981Donkey Kong Junior (US set F-2)Nintendo of America · 1982