The UNIVAC I (universal AUTOMATIC computer I) was first commercial computers manufactured in the USA. It was developed by J. Presper Eckert and John Mauchly and built by the computer company Remington edge.

The first UNIVAC became to 30. May 1951 to the American federal office for the execution of censuses delivered. CBS received fifth in the year 1952 for the forecast of the presidency election results. With a random inspection size of only 7% it computed the correct result: Eisenhower will win.

The UNIVAC I consisted 18,000 crystal diodes of 5.200 tubes, and weighed 13 t, needed an electrical output of 125 KW and could 1905 arithmetic operations per second accomplish. The circulating storage from mercury covered 4.3 m x 2.4 m x 2.6 M. the access time amounted to 200 entire system needed a utility space of 35,5 m

Main storage seized 1000 words with 12 decimal places (inclusive a place for the sign). The list of instructions covered 45 different instructions, whereby two instructions were coded into a word in each case.

The American federal office for the execution of censuses received initial price in October 1954 second Maschine.Der from $159.000 climbed up to $1.500.000 and was too high thereby for most universities. Only three machines were donated to American universities.

Altogether 46 UNIVAC I machines were built and delivered.

See also: Universal AUTOMATIC Calculator

Articles in category "UNIVAC I"

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