Spring having arrived here in the wilds of Canada, I moved some stuff and got close enough to that thing I was given last fall to read the labels on it. The box is a little bigger than a legal two drawer filing cabinet, and weighs a couple of hundred pounds. There are three tags with "M.A.I. Basic 4 Information Systems, each with a different model number... #9152 upgrade, # 610, and #1321. There is also a tag saying that in event of power failure the batteries are good for four hours! The cabinet contains a backplane and several plug-in boards. Does annyone have any idea of what this is? Cheers Charlie Fox