First Computer: “Difference Engine” – 1821

Charles Babbage (also known as Father of Computer) started working on Difference Engine, which is based on the principle of finite differences. It uses only arithmetic addition and removes the need for multiplication and and division which are more difficult to implement mechanically. It was strictly designed to calculate and tabulate polynomial function.

The project was commissioned by the British government, but due to its high production cost, the funding was stopped in the middle and the machine was never completed.