Gottfried Wilhelm Von Leibniz
1646 - 1716
German philosopher born July 1, 1646 and died November 14, 1716.
Prolific inventor of mechanical calculators.
Invented the Leibniz Wheel that became the first mass-produced mechanical calculator.
Refined the binary number system, which is the foundation of all computers today.
Refrences
https://en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz