Name/Title
1963- 14" Magnetic Disk Storage, IBM (4/2024)Tags
IBMDescription
1963- The magnetic disk invented by IBM in the early-1950s contained 100 concentric tracks on each side. Each track stored 500 alphanumeric characters, yielding a total storage capacity of 5 million characters. This disk enabled users to retrieve any piece of information directly in less than a second. Introduced in 1963, the IBM 1302 Disk Storage Unit was an improved version of the 1301, with four times the storage capacity. Up to five 1302s could be attached to one data processing system for a total storage capacity of more than one billion characters.