BASIC COMPUTER CONCEPTS
HISTORY OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Abacus
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Arithmometer
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Napier’s Bones
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Slide Rule
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Detailed explanation-1: -The arithmometer, invented by Charles Xavier Thomas de Colmar in 1820, was the first commercially successful calculating machine capable of performing addition, subtraction, multiplication and division.
Detailed explanation-2: -This Arithmometer was invented and patented by Charles Xavier Thomas de Colmar (1785-1870). His mechanical calculator was exhibited Paris Exposition of 1867 and performed simple multiplication and division. In around 1872 Thomas de Colmar’s became the first to manufacture over 1000 calculating machines.
Detailed explanation-3: -Charles Xavier Thomas de Colmar (1785-1870) was a French engineer. In 1820, he invented the first arithmometer, one of the first known mechanical calculators, Following this first model, a smaller and improved version was introduced in 1855 at the Exposition Universelle in Paris.