Percy Ludgate was an Irish amateur scientist who, in 1909, designed an analytical engine, a general-purpose Turing-complete computer and the second of its kind after Charles Babbages. The machine was designed to store 192 numbers of 20 digits each, and as part of the design he devised a number of novel techniques, including what he called Irish logarithms.
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- Also in Geography Atlas: Ireland, nationality there.
Sources
1. Wikipedia: Percy Ludgate
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Percy Edwin Ludgate (2 August 1883-16 October 1922) was an Irish amateur scientist who, in 1909, designed an analytical engine (a general-purpose Turing-complete computer, and the second of its kind).
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