In the beginning of the civilization, people used fingers and pebbles for computing purposes. In fact, the
word digitus in Latin actually means finger and calculus means pebble. This gives a clue into the origin of early
computing concepts. With the development of civilization, the computing needs also grew. The need for a
mechanism to perform lengthy calculations led to the invention of, first, calculator and then computers.
The term computer is derived from the word compute, which means to calculate. A computer is an electronic
machine, devised for performing calculations and controlling operations that can be expressed either ...
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