UNIVAC I

The Universal Automatic Computer (UNIVAC I) is delivered to its first customer, the U.S. Census Bureau, in 1951. Developed by Remington-Rand, the first American computer designed for commercial business use weighs 8 tons and uses 5,000 vacuum tubes. The machine can perform about 1,000 calculations per second. Remington-Rand sells forty-six UNIVAC machines by 1957.
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