IBM Archives   >   Exhibits   >   IBM 650   >   650 Reference room   >   650 Photo album   >   IBM 650 installation With IBM 727 Magnetic Tape Unit & IBM 355 Disk Storage   Previous image Next image This “white room” view of a 650 installation includes two IBM 727 Magnetic Tape Units in the background at left. To their right in the background […]

  IBM Archives   >   Exhibits   >   IBM Mainframes   >   Mainframes reference room   >   Mainframes photo album   >   1620 Data Processing System Previous image Next image 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), […]

    IBM Archives   >   Exhibits   >   IBM Mainframes   >   Mainframes reference room   >   Mainframes product profiles   >   1401 Data Processing System   Announced October 5, 1959 and withdrawn February 8, 1971. The following is the text of an IBM Data Processing Division press fact sheet distributed on October 5, 1959. The all-transistorized IBM 1401 Data Processing System places the features found in […]