Robots are not new. For many years, scientists have experimented with giving machines artificial intelligence, or computer brains. In the 1940's, crude computer-type machines were given the task of breaking codes. They were the first robot-type machines. Once called mechanical men, today robots are used for many things, and they can perform complicated work.
Robots are machines that use a computer brain to think.
People must put information into the computer, and that is called programming. Then, the computer tells the robot what to do. Messages are sent from the computer brain to motors in the robot s parts. For example, a message is sent to the robot s legs, telling them to move in a certain way, and the robot walks. Another message can be sent to the robot s arms and the robot moves its arms.