Question

Which of the following is the first calculating device?

A. Abacus

B. Calculator

C. Turing Machine

D. Pascaline

Answer 1

Answer:

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Abacus

Answer 2

Which of the following is the first calculating device?

• A. Abacus
• B. Calculator  
• C. Turing Machine  
• D. Pascaline

↔ Answer : A. Abacus

• Nobody know where abacus is originated from?
• Abacus was invented by Tim Cranmer,
• It consists of number of rows of movable beads or other objects, which represent digits,
• We can calculate sum , difference , product , division of numbers,
• We can also square and cube digits,
• It also has many other uses.

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