CHM Revolution

Date Introduced

1923 ca.

Photographer

Richards, Mark

Dimensions

7 x 17 x 10 in.

Manufacturer

International Business Machines Corporation (IBM)

Copyright Owner

© Mark Richards

Location

United States

Keywords

Unit record equipment; Keyboard

Object ID

102657666

Early versions of this keypunch put round holes in 45-column cards. When IBM switched to 80-column cards with rectangular holes in 1928, many machines were reconfigured to the new standard, including this one. The Type 11 was the first electrically-powered IBM punch, which relieved operators from making the punches using muscle power.