Calculator
Japanese Name:
電卓
Romaji Name:
dentaku
Description
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A calculator (dentaku in Japanese) is a small, portable electronic device used to perform arithmetic operations, such as addition, subtraction, multiplication, and division. Modern calculators can handle more advanced functions like square roots, exponents, and trigonometric calculations. They are widely used in schools, offices, and various industries for quick and accurate calculations.
History
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Calculators are devices used to perform arithmetic operations and complex mathematical calculations.
The earliest mechanical calculators date back to the 17th century, with inventions like Blaise Pascal’s Pascaline (1642) and Gottfried Wilhelm Leibniz’s stepped reckoner.
In the 19th and early 20th centuries, more advanced mechanical calculators were developed for business and scientific use.
The 1960s saw the emergence of electronic calculators using transistors, followed by integrated circuits in the 1970s.
Portable, handheld calculators became widespread in the 1970s and 1980s, replacing slide rules and manual devices.
Today, calculators exist in physical form and as software on computers and smartphones, serving educational, professional, and personal purposes worldwide.