ROBOTS...

A machine capable of carrying out a complex series of actions automatically, especially one programmable by a computer.
So what is a robot?
Well it is a system that contains sensors, control systems, manipulators, power supplies and software all working together to perform a task. Designing, building, programming and testing a robots is a combination of physics, mechanical engineering, electrical engineering, structural engineering, mathematics and computing. In some cases biology, medicine, chemistry might also be involved. A study of robotics means that students are actively engaged with all of these disciplines in a deeply problem-posing problem-solving environment.
http://www.galileo.org/robotics/intro.html