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  1. Home
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  3. March
  4. 31
  5. UNIVAC I

Events on March 31 in history

UNIVAC I
1951Mar, 31

Remington Rand delivers the first UNIVAC I computer to the United States Census Bureau.

The UNIVAC I (UNIVersal Automatic Computer I) was the first general-purpose electronic digital computer design for business application produced in the United States. It was designed principally by J. Presper Eckert and John Mauchly, the inventors of the ENIAC. Design work was started by their company, EckertMauchly Computer Corporation (EMCC), and was completed after the company had been acquired by Remington Rand (which later became part of Sperry, now Unisys). In the years before successor models of the UNIVAC I appeared, the machine was simply known as "the UNIVAC".The first Univac was accepted by the United States Census Bureau on March 31, 1951, and was dedicated on June 14 that year. The fifth machine (built for the U.S. Atomic Energy Commission) was used by CBS to predict the result of the 1952 presidential election. With a sample of a mere 5.5% of the voter turnout, it famously predicted an Eisenhower landslide.

Remington Rand was an early American business machine manufacturer, originally a typewriter manufacturer and in a later incarnation the manufacturer of the UNIVAC line of mainframe computers. Formed in 1927 following a merger, Remington Rand was a diversified conglomerate making other office equipment, electric shavers, etc. The Remington Rand Building at 315 Park Avenue South in New York City is a 20-floor skyscraper completed in 1911. After 1955, Remington Rand had a long series of mergers and acquisitions that eventually resulted in the formation of Unisys.

References

  • Remington Rand
  • UNIVAC I
  • United States Census Bureau

Choose Another Date

Events on 1951

  • 11Apr

    President Truman's relief of General Douglas MacArthur

    Korean War: President Harry Truman relieves General of the Army Douglas MacArthur of overall command in Korea.
  • 22Apr

    Battle of Kapyong

    Korean War: The Chinese People's Volunteer Army begin assaulting positions defended by the Royal Australian Regiment and the Princess Patricia's Canadian Light Infantry at the Battle of Kapyong.
  • 25Apr

    Battle of Kapyong

    Korean War: Assaulting Chinese forces are forced to withdraw after heavy fighting with UN forces, primarily made up of Australian and Canadian troops, at the Battle of Kapyong.
  • 3May

    Harry Truman

    The United States Senate Committee on Armed Services and United States Senate Committee on Foreign Relations begin their closed door hearings into the dismissal of General Douglas MacArthur by U.S. President Harry Truman.
  • 15Oct

    Combined oral contraceptive pill

    Mexican chemist Luis E. Miramontes conducts the very last step of the first synthesis of norethisterone, the progestin that would later be used in one of the first three oral contraceptives.

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