What are the two types of windmills?

The two main types of windmills are traditional windmills and modern wind turbines. Traditional windmills, often used for milling grain or pumping water, typically have large, flat sails that harness wind energy. In contrast, modern wind turbines are designed for electricity generation, featuring sleek, aerodynamic blades that convert wind energy into electrical power efficiently. Each type serves distinct purposes and utilizes different technologies to harness wind energy.