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In the beginning of the 1960's the first electronic calculating machines. The first model called Anita by Bellpunch company in October 1961.
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In 1970 a Japanese company invented the first electronic calculating machine that was running by batteries. this machine is much alike the calculator as we know today.
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In 1970, the Japanese calculator machine company contacted two American chip companies to develop electronic chips for them. A microprocessor was invented by one of the companies to Solve the problem and this invention continued the computing revolution
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In 1972, Hewlett-Packard Company introduced the first scientific calculator. This calculator could solve and perform many mathematical operations
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In 1974, HP introduced the first scientific pocket calculator. This calculator had many new upgrades that answered on the user's needs
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As part of the Apollo–Soyuz Test space program, HP's pocket calculator machine was sent to space to back up the navigation device
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Calculators today are having many technological upgrades. They are very common and used for a large number of scientific calculations and other needs