True or false? French philosopher and mathematician Blaise Pascal invented a mechanical calculator in 1642.
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Who invented the mechanical calculator and when did they do it? Why are they not famous for this invention? - Quora
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A history in calculators
The History Of The Calculator: When was the Calculator First Invented?
The Calculators Brief History: When was the calculator invented
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Jerry Merryman, the man who helped invent the hand-held calculator, has died | CNN Business
The History Of The Calculator
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Biography of Blaise Pascal, Inventor of the Calculator
Calculator - Wikipedia
Early Calculator: The Sad Story of an Inventor at Buchenwald - ABC News
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Father of calculus and calculators born 365 years ago
/img/iea/Z3G8yRL6mE/brief-history-calculators.jpg "The Calculators Brief History: When was the calculator invented")
The Calculators Brief History: When was the calculator invented
The History Of The Calculator
Who invented the first calculator - The Tech Edvocate
The History Of The Calculator
A Brief History of the Calculator I Oxford Open Learning
The First Mechanical Calculator and the Computer Revolution of the 160 – mimicEducationalRobots
Who invented the calculator, and in what year? - Quora
