889ComputerMedium
The first mechanical calculator was invented in which year?
A1642
B1543
C1858
D1972
Correct answer
A. 1642
Explanation
Blaise Pascal invented a mechanical calculator with a sophisticated carry mechanism in 1642.
Correct answer
A. 1642
Explanation
Blaise Pascal invented a mechanical calculator with a sophisticated carry mechanism in 1642.
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