Davinci's Calculator

Idea was conceived in 1502

used a series of Gears with 10:1 ratios in each of it’s 13 gears/wheels which when a dial was turned it could perform calculations.

Made calculations using metal pipes

Da Vinci conceived the world's first mechanical calculator

Influenced by the Hodometer

This was the first mechanical calculator and it introduced a new thing in the field of mathematics.

This was a predecessor to many calculators to come

References

https://www.educalc.net/197481.page