With that in mind, everything from early arcade cabinets to the original Atari and Nintendo consoles to the PlayStation 3 and Xbox can be considered retro.
The rules about what can be considered retro are not carved in stone, but the term is usually applied to stuff that is at least 15 years old. With that in mind, everything from early arcade cabinets to the original Atari and Nintendo consoles to the PlayStation 3 and Xbox can be considered retro.