Why, it is called "Computer"?
The word Computer has been derived from a Greek word "Compute" which means to "calculate". So that it is also called a calculating machine. It performs two types of calculations such as arithmetical and logical calculations.
Arithmetical calculations are addition, subtraction, multiplication and division.
Logical calculations are >,<,>=,<=,= etc.
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the following tools were used in an ancient period.
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