They are used in manufacturing, electronics assembly, and food processing. The word robot comes from the Czech word 'robota' that means drudgery. The science and technology that deals with robots is called robotics. A typical robot completes its task by following a set of specific instructions that tell it what and how the job is to be completed. These instructions are programmed and stored in the robot's control center, a computer or partial computer.
Robots come in different sizes and shapes.
Few resemble humans as is frequently depicted in science fiction. Most are stationary machines with a single arm that lifts or moves objects and uses tools. Engineers have also developed mobile robots with video cameras for sight and electronic sensors for touch. Such robots might be used on the ocean floor at depths man is unable to reach and in planetary exploration and other scientific research. Here you can find a brief history and other information about robots, lots of links, and some pictures too.