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Calculator – The History
The Abacus, earliest known instrument used in the aid of arithmetic calculation, was devised in Egypt in 2000 BC. A modern development was the slide rule, developed around in the 1620s by Edmund Gunter in the United Kingdom.
In 1957, IBM released the first viable all-transistor project, the IBM 608, even if it was housed in numerous cabinets.
Nowadays computers frequently come with a calculator utility program that emulates the appearance and functionality of calculators. Most smartphones also have such a feature.
The original hand held calculator was developed by Texas Instruments,an American company based in Dallas, Texas, United States; in 1967. It could add, subtract, multiply and divide; its output device was a paper tape, unlike the current standard calculator.