The next major advance came soon after the war, with the construction of the first commercially available electronic digital computer, UNIVAC. This d… - Dave Barry

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The next major advance came soon after the war, with the construction of the first commercially available electronic digital computer, UNIVAC. This device, which contained 20,000 vacuum tubes, occupied 1,500 square feet, and weighed 40 tons; there was also a laptop version weighing 27 tons. UNIVAC was capable of performing 5,000 mathematical calculations per second (Although it did get most of the answers wrong), which, although slow by today's standards, meant it was now possible for a single corporate employee to do something that formerly was impossible- play solitaire on the computer screen. The modern electronic office was born.