Artifact Details

Description

The Type 11 Card Punch reportedly was introduced in 1923, when IBM cards had 45 columns and round holes, and later was re-engineered to used the 80-column, rectangular-hole cards introduced in 1928. Preliminary indentificaton of this object is based on comparison to information accessed on October 31, 2008, at http://www.columbia.edu/acis/history/011.html, the website of Frank da Cruz / fdc@columbia.edu / Columbia University Computing History. Website updated as of September 26, 2007. Website cites: IBM Accounting Machines, Customeer Engineer Manual of Instruction: Electric Punch Type 011, International Business Machines Corporation, New York, New York (undated).

Date

1928 ca.

Manufacturer

International Business Machines Corporation (IBM)

Place Manufactured

U.S.

Identifying Numbers

Model number	011
Serial number	011-14836CR

Dimensions

7 x 17 x 10 in.

Category

I/O/punched card

Subject

Keyboard; Unit record equipment