2.when was pascaline intented?
3. Name the device that used beads for
calculation.
Answers
Answer:
2.
The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644. It could only do addition and subtraction, with numbers being entered by manipulating its dials.
3.
Abacus
The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool that was in use in the ancient Near East, Europe, China, and Russia, centuries before the adoption of the written Arabic numeral system. ...
In earliest use the rows of beads could be loose on a flat surface, or sliding in grooves.
Explanation:
2. 1642 and 1644
The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644. It could only do addition and subtraction, with numbers being entered by manipulating its dials.
3.abacus
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