who is a robot
The quadrupedal military robot Cheetah, an evolution of BigDog (pictured), was clocked as the world's fastest legged robot in 2012, beating the record set by an MIT bipedal robot in 1989. A robot is a machineâespecially one programmable by a computerâcapable of carrying out a complex series of actions automatically. Robots can be guided by an external control device or the control may be embedded within.