Correct option is D
The Pascaline was the first mechanical calculator, invented by Blaise Pascal in 1642. It could perform basic arithmetic operations like addition and subtraction.
Important Key Points:
1. Pascaline: It was an early mechanical calculator designed to help Pascal's father with tax calculations. It is considered one of the earliest calculating devices.
2. Blaise Pascal: A French mathematician and physicist, who invented this device, making it an important milestone in the history of computing.
Knowledge Booster:
· Mechanical Calculators: The Pascaline used gears and wheels to perform calculations, which laid the foundation for future computing devices.
· Charles Babbage: Later, Charles Babbage designed the Difference Engine and Analytical Engine, which were significant steps towards modern computers.
