The IBM Diskette and its implications for minicomputer systems

On January 22, 1973, IBM announced the 3740 Data Entry System and in so doing took a step that will strongly impact the entire data processing industry. What makes the 3740 so unusual is that it employs a new data storage medium — a flexible disk or, as IBM calls it, a “Diskette” — for an application heretofore dominated by punched cards. It is clear from statements in the IBM announcement that IBM expects the Diskette to replace the punched card as the major data entry medium and the 3740 System to replace keypunches, key-to-tape units, and off-line clustered key-tape and key-disk systems.