Computers and Computing Devices ｜ A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming.
Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. A "complete" computer including the hardware, ... more

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Types of computer systems ｜ Modern computers


Devices have been used to aid computation for thousands of years, mostly using one-to-one correspondence with fingers. The earliest counting device was probably a form of tally stick. Later record keeping aids throughout the Fertile Crescent included calculi (clay spheres, cones, etc.). Read full story

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