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1620 Data Processing System The 1620 was announced in 1959 as a general purpose, stored-program data processing system. This image shows (from left) the IBM 1622 Card-Read Punch, 1623 Storage Unit (at the rear) and the 1620 Central Processing Unit (in front), which contained the console, arithmetic and logical unit, and core storage.

1620 Data Processing System

1620 Data Processing System