CHM Revolution

Date Introduced

1944

Photographer

Richards, Mark

Dimensions

overall: 2 in x 1 1/2 in x 1/2 in

Manufacturer

International Business Machines Corporation (IBM)

Copyright Owner

© Mark Richards

Object ID

102716233

Many calculators and computers in the 1930s and 1940s used relays, which are relatively slow, as switching elements. These two relays form a flip-flop.