FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Pascaline, also called Arithmetic Machine, the first calculator or adding machine to be produced in any quantity and actually used.

Detailed explanation-2: -This first automatic calculator was called Pascal’s calculator, the Pascaline, and the Arithmetique. Pascal invented it when he was just 18 years old.

Detailed explanation-3: -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-4: -1820: First Commercially Produced Mechanical Calculator A Brief History: The arithmometer was the first commercially successful calculating machine to complete all four basic operations-addition, subtraction, multiplication and division-according to IBM.