The object is a multi-platter disk drive with a removable disk pack. This object has no disk pack mounted. On the front left is an emblem labeled "MHD A." On the front right are three indicator buttons labeled: "START," "0," and "FAULT." Removing the front panel reveals a card cage populated with transistor electronic modules. On the right side of the inside front are manufacturer labels for both Control Data Corporation (CDC) and Systems Engineering Laboratory (SEL). Removing the back panel reveals a power supply which rolls out on drawer-type rollers. The back of the power supply has an SEL property tag and a deprecated CHM catalog number bar code tag.
Date
ca. 1967
Manufacturer
Control Data Corporation (CDC)
Place Manufactured
Minneapolis, MN
Identifying Numbers
Model number
80-653A
Stamped on the SEL manufacturer's plate on inside front right side of object.
Model number
9432 C06
Printed on the CDC manufacturer's label on inside front right side of object.
Other number
102624271
Deprecated CHM catalog number, on a bar code label on inside back right of object.
Other number
1409J0203
Stamped on an SEL property tag on inside back left of object, annotated with the string "ID. NO."
Part number
41250110
Printed on the CDC manufacturer's label on inside front right side of object.
Serial number
1237
Printed on the CDC manufacturer's label on inside front right side of object.
Serial number
175900
Stamped on the SEL manufacturer's plate on inside front right side of object.