CHM Revolution

Date Introduced

1953 ca.

Photographer

Richards, Mark

Dimensions

11 x 30 1/2 x 11 (HWD) in.

Manufacturer

RAND Corporation

Credit Line

Gift of the RAND Corporation

Copyright Owner

© Mark Richards

Object ID

X1560.98

JOHNNIAC had run for 51,349 hours when it was finally decommissioned in 1966 after 13 years of operation. The “heater voltage” meter is higher because, to avoid failures, the vacuum tubes were left on even when the machine was not used.