FUNDAMENTALS OF COMPUTER

BASIC COMPUTER CONCEPTS

HISTORY OF COMPUTERS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Stepped Reckoner was the first device that could ____
A
Read punch cards
B
Print calculations
C
Add, Subtract, Multiply, & Divide
D
Add decimals
Explanation: 

Detailed explanation-1: -The Step Reckoner (or Stepped Reckoner) was a digital mechanical calculator invented by German mathematician Gottfried Wilhelm Leibniz around 1672 and completed in 1694. It was the first calculator that could perform all four arithmetic operations: addition, subtraction, multiplication and division.

Detailed explanation-2: -Gottfried Wilhelm Leibniz constructs the Stepped Reckoner, the first calculator able to carry out all four basic arithmetic operations (addition, subtraction, multiplication and division). Only two examples of this machine were ever built.

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.

Detailed explanation-4: -It can be used in the calculating engine of a class of mechanical calculators. The stepped drums can be twisted with a crank of different sizes which is around 0 to 9 sprockets. The numbers moving and Depending on their direction of movement, these numbers can be added or subtracted.

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