This object is a fixed (non-removable) disk drive in a cabinet. A sign found on the top of the object and separately packaged reads: "1971. Fixed head per track file, with price of $69,000 per megabyte. IBM 2305, Model 2 'Zeus'. Capacity: 11.3 Megabytes. Number of disks: 6, 14 inch disks. Tracks per inch: 200. Bits per inch: 4,200. Areal density: .84 Megabits/Inch (squared). Transfer rate: 1.5 Megabytes/Second."
Date
1970
Manufacturer
International Business Machines Corporation (IBM)
Identifying Numbers
Model number
2305
Written on the IBM manufacturer's label on the front of the object
Other number
#69
Handwritten with "IBM 2305 MOD 2 DISK" on yellow adhesive label at side of machine
Other number
109.88.054
Written in felt pen on the left side of the object
Other number
2305-80119
Stamped using raised letters on a white label below manufacturer's label
