It doesn't have a PC. It is a real live Multi-Williams. It is JAMMA. It has a real arcade monitor. It has a brand new power supply. It has all brand new controls. It has a brand new overlay. It has a brand new repro bezel and a brand new $400 arcadeshop Multiwilliams board.
You can also play JAMMA games in this cabinet, provided they are one button games. (Well you can play multi button games, but the way the jamma multi-williams works is that the player 2 side has player one buttons 2 and 3 in addition to player 2 buttons 1, 2, and 3.