Can you use PlayStation 2 games on a PlayStation 3?

This depends on the model of your PlayStation three.

Sony has issued out four different models of the PlayStation three, these are; The forty gigabyte, sixty gigabyte, eighty gigabyte and the one hundred and sixty gigabyte.

The forty and eighty gigabyte were released first, but the forty gigabyte PlayStation three cannot play PlayStation two games. Any other model can.