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Pioneer

Percy Ludgate

Also Known As Percy Edwin Ludgate
Computer Systems Organization

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.

Facts
Birth Year
1883 1
Birth Date
1883-08-02 2
Death Year
1922 2
Death Date
1922-10-16 2
Nationality
Irish 2
Contribution Kind
Hardware 2
Connections

Credited

Irish Logarithm, Algorithms
Source Wikipedia: Irish logarithm

In Field

Computer Architecture, Fields
Source Wikipedia: Percy Ludgate

Invented

Irish Logarithm, Algorithms
Source Wikipedia: Irish logarithm

Invented By

Multiply-accumulate operation, Concepts
Source Multiply-accumulate operation (Wikipedia)
In the Other Atlases

Nationality

Ireland

Also in Geography Atlas: the nationality of this subject.

Source Wikipedia: Percy LudgateLead sentence 1tier 2
Quote, Lead sentence 1
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).
United Kingdom

Also in Geography Atlas: the nationality of this subject.

Sources
1. Wikidata: Percy Ludgate
  • Wikidata Q3112961, class allow-list match (w-wdresolver-0926)
  • Wikidata Q3112961 P569 (date of birth)
2. Wikipedia: Percy Ludgate
Wikimedia Foundation
  • Lead section
    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).
  • Lead paragraph, contribution kind
    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).
  • In Field: Computer Architecture, Lead paragraph
View the Source
Wikipedia: Irish logarithm
  • Credited: Irish Logarithm, Intro, lead sentence
    Percy Ludgate
  • Invented: Irish Logarithm, Intro, lead sentence
    Percy Ludgate
View the Source
Multiply-accumulate operation (Wikipedia)
Invented By: Multiply-accumulate operation, Lead, Percy Ludgate
Quote, Invented By: Multiply-accumulate operation, Lead, Percy Ludgate
Percy Ludgate was the first to conceive a MAC in his Analytical Machine of 1909
View the Source
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