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Encyclopedia > ILLIAC I

The ILLIAC I (Illinois Automatic Computer), a pioneering computer built in 1952 by the University of Illinois, was the first computer built and owned entirely by an educational institution. A Lego RCX Computer is an example of an embedded computer used to control mechanical devices. ... 1952 (MCMLII) was a Leap year starting on Tuesday (link will take you to calendar). ... The University of Illinois at Urbana-Champaign, also known as UIUC and the U of I (the officially preferred abbreviation), is the flagship campus in the University of Illinois system. ...


ILLIAC I was based on the Institute for Advanced Study (IAS) Von Neumann architecture edited by mathematician John von Neumann. Unlike the other computers of its era, the ILLIAC I and ORDVAC computers were twin copies of the same design, and so therefore they could exchange software. The computer had 2,800 vacuum tubes, measured 10 ft (3 m) by 2 ft (0.6 m) by 8½ ft (2.6 m) (L×B×H), and weighed 5 tons (4.5 t). ILLIAC I was very powerful for its time; in 1956 it had more computing power than all of Bell Labs. Fuld Hall The Institute for Advanced Study is a private institution in Princeton Township, New Jersey, U.S.A. (although it is not part of Princeton University), designed to foster pure cutting-edge research by scientists in a variety of fields without the complications of teaching or funding, or the... Design of the Von Neumann machine A von Neumann architecture is a computer design model that uses a single storage structure to hold both instructions and data. ... John von Neumann in the 1940s. ... The ORDVAC or Ordnance Discrete Variable Automatic Computer, an early computer built by the University of Illinois for the Ballistic Research Laboratory at Aberdeen Proving Ground, was based on the Institute for Advanced Study (IAS) architecture developed by John von Neumann. ... In electronics, a vacuum tube (U.S. and Canadian English) or (thermionic) valve (outside North America) is a device generally used to amplify, or otherwise modify, a signal by controlling the movement of electrons in an evacuated space. ... Bell Laboratories (also known as Bell Labs and formerly known as AT&T Bell Laboratories and Bell Telephone Laboratories) was the main research and development arm of the United States Bell System. ...


Because the lifetime of the tubes within ILLIAC was about a year, the machine was shut down every day for "preventive maintenance" when older vacuum tubes would be replaced in order to increase reliability. The machine was retired in 1962, when the ILLIAC II became operational.


Innovations

  • 1955, Lejaren Hiller and Leonard Isaacson, used ILLIAC I to compose the "Illiac Suite," which was one of the first pieces of music to be written with the aid of a computer.
  • 1957, Mathematician Donald B. Gillies, Physicist, James E. Snyder and Astronomers George C. McVittie, S. P. Wyatt, Ivan R. King and George W. Swenson of the University of Illinois used the ILLIAC I computer to calculate the orbit of the Sputnik I satellite within 2 days of its launch.

USA composer Lejaren Hiller (February 23, 1924, New York City - January 26, 1994, Buffalo, New York) founded the University of Illinois Experimental Music Studio in the late 1950s and collaborated on the first significant computer music composition, 1957s Illiac Suite, with Leonard Issacson. ... Donald Bruce Gillies (October 15, 1928 - July 17, 1975) was a Canadian mathematician and computer scientist, known for his work in game theory, computer design, and minicomputer programming environments. ... The University of Illinois at Urbana-Champaign, also known as UIUC and the U of I (the officially preferred abbreviation), is the flagship campus in the University of Illinois system. ... Sputnik 1 was the first artificial satellite to be launched into orbit, on October 4, 1957. ...

See also

ILLIAC was the name given to a series of Supercomputers built at the University of Illinois at Urbana-Champaign. ... The ORDVAC or Ordnance Discrete Variable Automatic Computer, an early computer built by the University of Illinois for the Ballistic Research Laboratory at Aberdeen Proving Ground, was based on the Institute for Advanced Study (IAS) architecture developed by John von Neumann. ... The MUSASINO-1 was the second electronic computer built in Japan. ... The ILLIAC II was a computer built by the University of Illinois and became operational in 1962. ... The ILLIAC III was a fine-grained SIMD pattern recognition computer built by the University of Illinois in 1966. ... The ILLIAC IV was one of the most infamous supercomputers ever, destined to be the last in a series of research machines from the University of Illinois. ...

External links

  • ILLIAC I history including computer music.
  • ILLIAC I Programmer's Manual – Including program library documentation
  • I. R. King, G. C. McVittie, G. W. Swenson, Jr., and S. P. Wyatt, Jr., "Further observations of the first satellite," Nature, No. 4593, November 9, 1957, p. 943.

  Results from FactBites:
 
Illiac-IV-1960's (166 words)
Illiac IV (Burroughs and University of Illinois) (1965)
Illiac IV's Array Processor was perfect for applications which involved matrices and partial differential equations like those found in weather prediction software or functions to find multiple values around a point.
Illiac IV remained competitive, from a speed point of view until the mid-1980's.
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