CHM Revolution

Date Introduced

1980

Photographer

Richards, Mark

Dimensions

overall: 3/8 in x 5 3/8 in x 2 3/4 in

Manufacturer

Casio Computer Company, Ltd.

Credit Line

Gift of Warren Yogi

Copyright Owner

© Mark Richards

Object ID

102716321

This “data bank” calculator might have been the first that had a pen-based interface and did simple character recognition.