Columbia University Computing History   

Card-Operated Table Printer Sample

Page 69 of the Cincinnati Observatory reprint of Watson Lab's Ephemerides of 783 Minor Planets for the Year 1947, printed on the Naval Observatory's Card-Operated Table Printer, scanned from a copy of the original publication in the University of Toronto library by Herb Grosch in April 2004. This page was included as Figure 7 in Hollander, Frederick H., "Punched Card Calculating and Printing Methods in the Nautical Almanac Office", Proceedings, Scientific Computation Forum, IBM, New York (1948), as a "masterpiece of typing", illustrating most of the features of the C-O-T on one page.

CLICK IMAGE to magnify and sharpen. Almanac page

Columbia University Computing History Frank da Cruz / This page created: January 2001 Last update: 1 April 2021