Manual controls refer to the physical mechanisms or devices that allow users to operate machines or systems directly. These controls can include levers, knobs, buttons, and pedals, enabling users to adjust settings or perform actions without relying on automated systems. Manual controls are commonly found in various equipment, such as vehicles, industrial machines, and household appliances. Using manual controls often provides a more hands-on experience, allowing users to have immediate feedback and greater precision. While they can require more effort and attention than automated systems, manual controls are essential in situations where fine-tuning or direct intervention is necessary, such as in aircraft operation or musical instruments.