COMPUTER FUNDAMENTALS

COMPUTER HISTORY AND EVOLUTION

DEVELOPMENT OF COMPUTERS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

This machine was developed by French mathematician-philosopher Blaise Pascal and was limited to perform addition and subtraction only. what do we call this machine?

A	Pascaline
B	Tabulating machine
C	Analytical engine
D	Jacquard Loom

Explanation:

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: -The Pascaline is a direct adding machine (it has no crank), so the value of a number is added to the accumulator as it is being dialed in. By moving a display bar, the operator can see either the number stored in the calculator or the complement of its value.

Detailed explanation-3: -Step Reckoner, a calculating machine designed (1671) and built (1673) by the German mathematician-philosopher Gottfried Wilhelm von Leibniz. The Step Reckoner expanded on the French mathematician-philosopher Blaise Pascal’s ideas and did multiplication by repeated addition and shifting.

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