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IBM 1311 disk storage drive

IBM 1311 disk storage drive

IBM 1311 disk storage drive
The IBM 1311 Disk Storage Drive provided storage for two million characters. Debuting in 1962, the 1311 used the IBM Disk Pack -- an interchangeable package containing six 14-inch-diameter disks in a four-inch stack, weighing 10 pounds. Some analysts believe that the removable disk pack not only led to a new phase of disk storage but signaled the passing of the punched card era.