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IBM 350 disk storage unit

IBM 350 disk storage unit

IBM 350 disk storage unit
The IBM 350 Disk Storage Unit was rolled out in 1956 to be used with the IBM 305 RAMAC to provide storage capacities of five, 10, 15 or 20 million characters. It was configured with 50 magnetic disks containing 50,000 sectors, each of which held 100 alphanumeric characters.