The document defines a robot as a machine that can carry out complex series of actions using computer programming. It defines a humanoid robot as having a body resembling a human with two arms, two legs, and a head. It discusses Asimo, an early humanoid robot introduced in 2000 that was designed to be a mobile assistant. The document also notes that robots are taking over dull, dangerous, and dirty tasks, but that truly intelligent human-level robots are at least 50 years away and may never be achieved. It acknowledges that the real concern is not robots themselves but how they are programmed by people.