CHM Revolution

Date Introduced

1930 ca.

Photographer

Richards, Mark

Dimensions

overall: 2 1/4 in x 9 1/2 in x 12 in

Manufacturer

Johnson, Rey

Credit Line

Gift of David R. Johnson

Copyright Owner

© Mark Richards

Location

US

Keywords

Prototype; Experimental

Object ID

102662433

IBM hired Rey Johnson in 1934 because he invented a test-scoring machine for schools, which IBM later developed as a product. Johnson established IBM’s San Jose, CA laboratory in 1952 and was charged with bringing west coast engineering talent into IBM.