CHM Revolution

Date Introduced

1977 ca.

Photographer

Richards, Mark

Dimensions

3/4 x 2 1/2 x 4 1/4 in.

Manufacturer

Casio Computer Company, Ltd.

Copyright Owner

© Mark Richards

Location

Japan

Keywords

Commodity device; Mass market; Electronic calculation

Object ID

102632976

Inexpensive calculators like this drove prices below $10 in the mid-1970s.