BASIC COMPUTER CONCEPTS
HISTORY OF COMPUTERS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Pascal’s Adding machine
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Leibniz calculator
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Either A or B
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None of the above
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Detailed explanation-1: -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.
Detailed explanation-2: -Working of Pascal’s Calculator : In this calculator, the numbers can be added by rotating the wheel clockwise which is located at the bottom of the machine and for subtraction rotate those same wheels counterclockwise. The Pascal calculator/machine has no crank and it is a form of a direct adding machine.
Detailed explanation-3: -Pascal’s invention of the mechanical calculator in the early 1640s was born out of a desire to help his father in collecting taxes. He was the second person known to have created a device of this kind.