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Illiac IThe 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. It was also the first computer at the University of Illinois. ILLIAC I was based on the Institute for Advanced Study (IAS) architecture developed by mathematician John von Neumann. Unlike 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. The machine was retired in 1962, when the ILLIAC II became operational. See also External links
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