Computer Output Device: Arm Robot

A robotic arm is a type of mechanical arm, usually programmable, with similar functions to a human arm; the arm may be the sum total of the mechanism or may be part of a more complex robot. The links of such a manipulator are connected by joints allowing either rotational motion (such as in an articulated robot) or transnational (linear) displacement. For example robot arms in automotive assembly lines perform a variety of tasks such as welding and parts rotation and placement during assembly.