Mechanical Calculator

A mechanical calculator is a device that uses gears, dials, and levers to perform arithmetic operations like addition, subtraction, multiplication, and division without electronic components. Before electronic computers, these tools helped automate complex calculations efficiently. They rely on precise mechanical movements to process numbers, making calculations faster and more accurate than manual counting or mental effort. Examples include the abacus, Pascal's calculator, and the difference engine. Mechanical calculators laid the groundwork for modern computing by demonstrating how machinery can automate and speed up mathematical tasks.