Biaise Pascal invented the first mechanical and automatic calculator
Wilhelm Gottfried Liebniz and The Stepped Reckoner
Is also a calculating machine, but can multiply and find square, roots of numbers
John Napier Invented a calculating tool
The Jacquard´s Loom
It was a weaving machine that was controlled by punched cards
Charles Babbage & his Engines
Babbage designed a computing machine called the Difference Engine. This machine calculate and print simple math tables. Also he designed the Analytical Engine, this machine was used to calculate complicated problems.