Electromechanical calculators

Electromechanical calculators are computing devices that utilize both electrical and mechanical components to perform arithmetic calculations. They represent an intermediate technology between purely mechanical calculators and modern electronic calculators. ### Key Features: - **Mechanical Elements:** These calculators often have gears, levers, and other mechanical components that physically move to perform calculations. For example, they might use a stepped drum or a series of gears to represent and manipulate numbers.