A robot can be controlled by a human operator, sometimes from a great distance.
But most robots are controlled by computer, and fall into either of two categories:
autonomous robots and insect robots. An autonomous robot acts as a stand-alone system,
complete with its own computer (called the controller). Insect robots work in fleets
ranging in number from a few to thousands, with all fleet members under the supervision
of a single controller. The term insect arises from the similarity of the system to a
colony of insects, where the individuals are simple but the fleet as a whole can be
sophisticated. Download this very electronic live wallpaper.