COMPUTER FUNDAMENTAL
ARCHITECTURE OF 8085
Question
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Pascaline


Abacus


Stepped Reckoner


Difference Engine

Detailed explanation1: The Pascaline was designed and built by the French mathematicianphilosopher Blaise Pascal between 1642 and 1644. It could only do addition and subtraction, with numbers being entered by manipulating its dials.
Detailed explanation2: Pascalâ€™s calculator (also known as the arithmetic machine or Pascaline) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his fatherâ€™s work as the supervisor of taxes in Rouen.
Detailed explanation3: A Life of Science In 1641, at the age of 18, Pascal built his first arithmetical machine, an instrument which, eight years later, he further improved and called the Pascaline.
Detailed explanation4: Between 1642 and 1644, Pascal conceived and constructed a calculating device, the Pascaline, to help his fatherwho in 1639 had been appointed intendant (local administrator) at Rouenin his tax computations.