This object has a metal frame, open on both sides, and a door on the back. The front two thirds of the frame contain a roll-out unit with two hinged card cages. The cages are filled with IBM modules. At the top there is an orange add on bracket with one screw protruding from the middle. The back third of the frame is for cabling.
Date
1961
Manufacturer
International Business Machines (IBM)
Place Manufactured
N.Y., U.S.
Identifying Numbers
Model number
7101
Found on the label on the right front door of the unit.
Other number
25
Unit number found on the right front door.
Other number
25b1a28m
Master Sinc. number typed on a white tag on the right CPU frame.
Other number
25b1A28P
Master Sinc. number typed on a white tag on the right CPU frame.