The drive occupied 16 square feet and used fifty 24-inch platters read by two independently moving arms that had an average access time of 600ms. Also referred to as the IBM 350 disk storage unit ...

The IBM 350 Disk File weighed about one ton, and stored up to 5 million characters of data on 50 spinning disks. Jim Porter, the late storage industry analyst, told CRN years ago that he was an ...

Robert Mann suggests that the drive is an IBM 350, which was announced in 1956 and, per Wikipedia, actually only had 3.75 megabytes of storage. Also per Wikipedia, the 350 was available for rent ...

featuring the IBM Model 350 disk storage unit (US Patent 3,503,060). This groundbreaking drive offered 5MB of storage at $10,000 per MB. At the time, customers would pay over $3,200 per month to ...