A. 1543
B. 1642
C. 1858
D. 1972
Submitted by: Ali Mallah
Blaise Pascal invented a mechanical calculator with a sophisticated carry mechanism in 1642.
Correct Answer: B. 1642 ✔
Last Updated: March 02, 2021
A. 1543
B. 1642
C. 1858
D. 1972
Submitted by: Ali Mallah
Blaise Pascal invented a mechanical calculator with a sophisticated carry mechanism in 1642.
Correct Answer: B. 1642 ✔
Last Updated: March 02, 2021