Read the following text and fill in the gaps with the words from the box:
| tasks classified perform types designed welding sensors objects environment |
At present there are 2 main (1) __________ of robots, based on their use: general-purpose autonomous robots and dedicated robots.
General-purpose autonomous robots are robots that can (2) __________ a variety of functions independently. General-purpose autonomous robots typically can navigate independently in known spaces, handle their own re-charging needs, interface with electronic doors and elevators and perform other basic tasks. Like computers, general-purpose robots can link with networks, software and accessories that increase their usefulness. They may recognize people or (3) __________ , talk, provide companionship, monitor environmental quality with the help of (4) __________ , react to the changes in its (5) __________, pick up supplies and perform other useful tasks. General-purpose robots may perform a variety of functions simultaneously or they may take on different roles at different times of day. Some such robots try to mimic human beings and may even resemble people in appearance; this type of robot is called a humanoid robot.
Robots can be (6) __________ by their specificity of purpose. A robot might be (7) __________ to perform one particular task extremely well, or a range of (8) __________ less well. Of course, all robots by their nature can be re-programmed to behave differently, but some are limited by their physical form. For example, a factory robot arm can perform jobs such as cutting, (9)__________ , gluing, or acting as a fairground ride, while a pick-and-place robot can only populate printed circuit boards.