A carbon composition resistor is an electronic component used to limit the flow of electric current in a circuit. It is made from a mixture of carbon particles and a binding material, which gives it its resistance value. These resistors are known for their simplicity and low cost, making them popular in various applications. Despite their advantages, carbon composition resistors have some limitations, such as higher noise levels and less stability compared to other types like metal film resistors. They are often used in applications where precision is not critical, such as in older electronic devices and audio equipment.