Computer in Earlys' living room
I first thought it was an Amiga 500, but it wasn't, but after going through the Old Computers website I tracked it down:
http://www.old-computers.com/museum/computer.asp?st=1&c=104
It's not an Amiga, but it's a 1983 Commodore model, very old considering when GW is set (1992).