Mechanical calculator

A mechanical calculator is a device that performs mathematical calculations using mechanical components rather than electronic ones. These calculators were developed before the advent of electronic computing technology and typically utilized gears, levers, and other mechanical parts to perform addition, subtraction, multiplication, and division. The key features of mechanical calculators include: 1. **Gear Systems**: They often employed a system of gears and levers to represent numbers and perform calculations. The movement of these parts would translate numeric values into mechanical movement.