Computer was originally a calculating device according to the procedure of data use has been based on the formula.Usefulness of computers as a tool to calculate the arithmetic usually be more easily and efficiently.
in another sense the computer can be interpreted as a smart calculator and more advanced technology.computer word generally means people who perform arithmetic calculations with or without help calculators.
By Barnhart Concise Dictionary of Etymology, the word used in the English language computer in 1646 as the word for "people counting" later in 1897 called "mechanical calculators",Charles Babbage designed one of the first calculating machine called the analytical engine. In addition, various machine tools as simple as a slide rule also has to be said as a computer.
