Information about Percy Ludgate
Percy E. Ludgate (August 2, 1883- October 16, 1922) was an accountant in Dublin and designer of an Analytical Engine.
Working alone, Ludgate designed an Analytical Engine while unaware of Charles Babbage's designs, although he later went on to write about Babbage's machine. Ludgate's engine used multiplication as its base mechanism unlike Babbage's which used addition, Ludgate's engine used rods similar to slide rules. Its precise mechanism is unknown as only written accounts of the engine survive which do not detail its workings.
Ludgate also helped advance calculators by expanding Charles Babbage's design for the first programmable computer. He was one of a few independent workers in the field of science and mathematics. His inventions were worked on outside a lab. He worked on the inventions only part-time.
His design featured several novelties, including a method of implementing multiplication referred to at the time as 'Irish Logarithms'. (Boys, 1904)
Little is known about Ludgate's life, as his only records are his scientific writings. He died of pneumonia in 1922.
Working alone, Ludgate designed an Analytical Engine while unaware of Charles Babbage's designs, although he later went on to write about Babbage's machine. Ludgate's engine used multiplication as its base mechanism unlike Babbage's which used addition, Ludgate's engine used rods similar to slide rules. Its precise mechanism is unknown as only written accounts of the engine survive which do not detail its workings.
Ludgate also helped advance calculators by expanding Charles Babbage's design for the first programmable computer. He was one of a few independent workers in the field of science and mathematics. His inventions were worked on outside a lab. He worked on the inventions only part-time.
His design featured several novelties, including a method of implementing multiplication referred to at the time as 'Irish Logarithms'. (Boys, 1904)
Little is known about Ludgate's life, as his only records are his scientific writings. He died of pneumonia in 1922.
References
- Boys, C.V. "A New Analytical Engine", Nature, 81, 1909 14-15
- From Analytical Engine to Electronic Digital Computer: The Contributions of Ludgate, Torres, and Bush. Brian Randell, October 1982, Annals in the History of Computing, Vol. 4, No. 4
- Ludgate's Analytical Machine of 1909 Brian Randell, The Computer Journal, Volume 14, Issue 3, pp. 317-326. (A subscription to the journal or payment on a per-article basis is required to view this article)
- The Feasibility of Ludgate's Analytical Machine
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The analytical engine, an important step in the history of computers, was the design of a mechanical general-purpose computer by the British professor of mathematics Charles Babbage. It was first described in 1837, but Babbage continued to work on the design until his death in 1871.
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The analytical engine, an important step in the history of computers, was the design of a mechanical general-purpose computer by the British professor of mathematics Charles Babbage. It was first described in 1837, but Babbage continued to work on the design until his death in 1871.
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Charles Babbage FRS (26 December 1791 – 18 October 1871) was an English mathematician, philosopher, and mechanical engineer who originated the idea of a programmable computer. Parts of his uncompleted mechanisms are on display in the London Science Museum.
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Charles Babbage FRS (26 December 1791 – 18 October 1871) was an English mathematician, philosopher, and mechanical engineer who originated the idea of a programmable computer. Parts of his uncompleted mechanisms are on display in the London Science Museum.
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computer is a machine which manipulates data according to a list of instructions.
Computers take numerous physical forms. The first devices that resemble modern computers date to the mid-20th century (around 1940 - 1941), although the computer concept and various machines
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Computers take numerous physical forms. The first devices that resemble modern computers date to the mid-20th century (around 1940 - 1941), although the computer concept and various machines
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Brian Randell is a British computer scientist, specializing in research in software fault tolerance and dependability. He is also interested in, and a noted authority on, the early (prior to 1950) history of computers; he was a co-founder of the
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Brian Randell is a British computer scientist, specializing in research in software fault tolerance and dependability. He is also interested in, and a noted authority on, the early (prior to 1950) history of computers; he was a co-founder of the
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