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Surveys the history of devices leading up to modern computer systems, from ancient celestial calculators and abacuses to punched card systems and the Univac.

Describes the explosive growth of computers in the world over the past forty-five years and their uses in business, communication, air traffic control, and the space program.

Describes the development of minicomputers, how they work, and how they are used.

Describes the development and past and present uses of some of the most powerful computers ever designed.