Columbia University Computing History   

The IBM 402 Accounting Machine

The IBM 402 accounting machine, 1948. Photo: IBM 402, 403, and 419 Accounting Machines: Manual of Operation, International Business Machines Corporation, Data Processing Division, 112 East Post Road, White Plains, New York, Form 224-5654-12, © 1949, 1951, 1952, 1953. Click image to magnify.

IBM 402 accounting machine
The IBM 402 accounting machine with parts labeled
Columbia University Computing History Frank da Cruz / fdc@columbia.edu This page created: January 2001 Last update: 31 March 2021