How to Play PS2 Games on Your PS4
PS2 to PS4? No Backwards Compatibility Part of the reason the PlayStation 2 had backwards compatibility is that it had most of the original PlayStation inside of it. The main processor from the PS1 was used in the PS2 as an input/output processor. The PS2 also had the PS1 sound chip built-in. Not that it waseasyto make backwards compatibility work in the PlayStation 2, according to anarticle on the subject by Tetsuya Iida and translated by Tom James....