Simon Relay Computer


Historical References



The Simon Relay Computer

Construction Plans for Simon


By Edmund C. Berkeley and Robert A. Jensen

Copyright, 1952 by Edmund C. Berkeley


Second Edition, published March 1952

by Edmund C. Berkeley and Associates

36 West 11 St., New York 11, NY

Second Printing, October 1952

Third Printing, August 1952


Simon is a small portable mechanical brain, weight 39 lbs and in volume 1 1/4 cu. ft.
It was constructed by Edmund C. Berkeley and Associates, in the period November 1949 to May 1950, and was modified to become more powerful July 1950 to September 1950.   The materials costs about $270.  At first, Simon could handle only numbers 0,1,2 and 3, and four operations: addition (without carry), subtraction and negation (without carry), greater than, and selection.




Web Pages and new material (C) Kevin Murrell 2004
Simon Computer (c) Edmund C. Berkeley 1952

Last Updated: Sunday September 19, 2004