From Metal Gear Solid 1 on the PlayStation to Metal Gear Solid 4 on the PlayStation 3, the PlayStation has truly revolutionized gaming. PlayStation has proved that it is the number 1 console on the market introducing new developers and new games time and time again. From 128 KB memory cards on the PlayStation , 8 MB memory cards on the PlayStation 2 and then hard drives on the PlayStation 3. Who knows what Sony has in store for us with the next PlayStation.