Human And Robots

A humanoid robot is an autonomous robot because it can adapt to changes in its environment or itself and continue to reach its goal. This is the main difference between humanoids and other kinds of robots. In this context, some of the capacities of a humanoid robot may include, among others:
self maintenance (recharge itself)
autonomous learning (learn or gain new capabilities without outside assistance, adjust strategies based on the surroundings and adapt to new situations)
avoiding harmful situations to people, property and itself
safe interacting with human beings and the environment
Like other mechanical robots, humanoids refer to the following basic components too: Sensing, Actuating and Planning and Control. Since they try to simulate the human structure and behaviour and they are autonomous systems, most of the times humanoid robots are more complex than other kinds of robots(more info click here)