The object is a rectangular object in a portrait orientation. There are access doors on both the front and the back. Square plastic buttons on the front are labeled START, READY, FAULT, and PROTECT. There is a flip up door on top which provides access to the disk platters. On the back of the unit below a vent screen is a power connector with a power cord connected, a "POWER SUPPLY" on/off switch, and "AC POWER" on/off switch. There is also a counter labeled "HOURS". There are also several multi-pin connectors near the right edge.
Manufacturer
Control Data Corporation (CDC)
Identifying Numbers
Model number
877
Printed as "CDC MODEL" on top disk platter inside top of unit
Model number
9762
Etched on a metal plate on the front of the object
Other number
47308701
Printed on a white label inside the back door of the unit. Marked "ASSY".
