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The Computer Journal 1971 14(3):317-326; doi:10.1093/comjnl/14.3.317
© 1971 by British Computer Society
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Ludgate's analytical machine of 1909

B. Randell *

Computing Laboratory, Claremont Tower, University of Newcastle upon Tyne, Newcastle upon Tyne, UK

This paper discusses the little known analytical machine, or program-controlled mechanical calculator, designed by Percy E. Ludgate in Ireland during the years 1903 to 1909, and documents the results of a search for information about his life and work.

Received January 1971.

* Computing Laboratory, Claremont Tower, University of Newcastle upon Tyne


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