1.

Tell me about Pascaline​

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Answer:

Pascal's calculator is a mechanical calculator invented by Blaise Pascal in the mid 17th century. Pascal was led to develop a calculator by the laborious arithmetical calculations REQUIRED by his father's work as the supervisor of taxes in Rouen. Wikipedia

Calculation supported: Multiplication, Division, Subtraction, ADDITION

Purpose: Adding and subtracting two NUMBERS DIRECTLY and to PERFORM multiplication and division through repeated addition or subtraction

Made of material option: Metal

Component: Gear, Stylus, Display bar, Sautoir

Creator: Blaise Pascal

Explanation:

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