Multiple choice

Directions: Find find the inventor of the following.

Adding machine

  1. Wilhelm Schickard

  2. Leo. H. Backeland

  3. James Puckle

  4. Z. Janssen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wilhelm Schickard is credited with creating the first mechanical calculator (adding machine) in 1623.

Keep practicing — related questions