Manufacturers use computer-aided manufacturing (CAM) and computers to produce products faster, with more precision and accuracy. CAM is a programming tool that helps automate production using computer-controlled machinery and robots. Computers also manage raw materials, suppliers, costs, and inventory. They are used to design new machines and test them virtually before manufacturing. Some industries like car manufacturing are fully automated through computer-integrated manufacturing (CIM), where all processes are done by robots under computer control.