BASIC COMPUTER CONCEPTS
HISTORY OF COMPUTERS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
PAscal’s Adding machine
|
|
|
Leibniz Calculator
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -In 1671 the German mathematician-philosopher Gottfried Wilhelm von Leibniz designed a calculating machine called the Step Reckoner . (It was first built in 1673.) The Step Reckoner expanded on Pascal’s ideas and did multiplication by repeated addition and shifting.
Detailed explanation-2: -The Analytical Engine The Engine had a ‘Store’ where numbers and intermediate results could be held, and a separate ‘Mill’ where the arithmetic processing was performed. It had an internal repertoire of the four arithmetical functions and could perform direct multiplication and division.
Detailed explanation-3: -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. He designed the machine to add and subtract two numbers directly and to perform multiplication and division through repeated addition or subtraction.
Detailed explanation-4: -The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644.
Detailed explanation-5: -It was the first known calculator that could perform all four arithmetic operations; addition, subtraction, multiplication and division.