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Howard Aiken

Howard Aiken

Harvard physicist who conceived the Harvard Mark I computer

8 March 1900 – 14 March 1973 United States Verified by our editors
Lived
73 yrs
1900 – 1973
Works listed
1
Computer
Honours
3
Most recent 2014
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2
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Howard Aiken was an American physicist who conceived the Harvard Mark I, a large electromechanical computer built by IBM and completed in 1944. He also started one of the first university programmes in computer science at Harvard.

Biography

Background

Aiken grew up in Indianapolis, worked night shifts at a power company while studying, and earned degrees at the University of Wisconsin and a PhD in physics at Harvard.

The Mark I

In 1937, frustrated by tedious calculations, Aiken proposed an automatic calculating machine inspired by Charles Babbage. IBM built it to his design; the Automatic Sequence Controlled Calculator, known as the Harvard Mark I, was 15 metres long and began work in 1944 for the US Navy, including calculations for the Manhattan Project.

Later machines and teaching

Aiken led the Mark II, III and IV and founded the Harvard Computation Laboratory, offering early degrees in what became computer science. Grace Hopper was among his team.

Later life

He retired from Harvard in 1961 and worked as a consultant. He died in 1973.

Timeline

  1. 1900

    Born in Hoboken, New Jersey, United States

  2. 1937

    Proposes the automatic calculator

  3. 1939

    IBM agrees to build it

  4. 1944

    Harvard Mark I dedicated

  5. 1947

    Mark II

  6. 1961

    Retires from Harvard

  7. 1970

    Edison Medal

  8. 1973

    Dies

  9. 1973

    Died, aged 73

Notable works

  • 1944

    Harvard Mark I Computer

Awards and honours

  • Harry H. Goode Memorial Award

    1964

  • Edison Medal

    1970

  • National Inventors Hall of Fame

    2014

Did you know?

  1. 1

    IBM chairman Thomas Watson was angered that Harvard’s announcement credited Aiken more than IBM.

  2. 2

    The Mark I weighed about 4.5 tonnes.

  3. 3

    Part of the Mark I is on display at Harvard.

Connections

Frequently asked

Who is Howard Aiken?

Howard Aiken was an American physicist who conceived the Harvard Mark I, a large electromechanical computer built by IBM and completed in 1944. He also started one of the first university programmes in computer science at Harvard.

When did Howard Aiken die?

Howard Aiken died on 14 March 1973 at the age of 73.

Where is Howard Aiken from?

Howard Aiken was born in Hoboken, New Jersey, United States.

What is Howard Aiken known for?

Howard Aiken is best known for Harvard Mark I (1944); founding computer science education at Harvard.

What awards has Howard Aiken received?

Notable honours include Harry H. Goode Memorial Award (1964), Edison Medal (1970), National Inventors Hall of Fame (2014).

References

  1. Howard H. Aiken — Wikipedia. Wikipedia. Retrieved 4 November 2026.
  2. Howard H. Aiken — Britannica. Encyclopaedia Britannica. Retrieved 4 November 2026.
  3. Howard H. Aiken (Q299723) — structured data. Wikidata. Retrieved 4 November 2026.

Includes material from the Wikipedia article “Howard H. Aiken”, licensed under CC BY-SA 4.0. That text is available under the same licence. Learn more

External links

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Cite this page

“Howard Aiken.” TrackFame, last updated 5 November 2026. https://trackfame.com/person/howard-aiken

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