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A Brief History of the Personal Computer

This month we celebrate the dawn of the personal computer. Prior to 1970, there was nothing resembling the portable personal computers we have today. Computers were called mainframes, and they took up entire floors of office buildings. They were very expensive and could only be used by experts. Early Computer Technology The above pictured Burroughs B5500 at the University of Virginia cost $5 million. It was considered cutting edge technology when it was installed in July 1964. Each of those cabinets represents just a portion of the mainframe: processors, memory modules, input/output units, and more. Compared to today’s computers, the…

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