An example of car manufacturing using robots is in the paint spraying. A human sprays one car. The process is tracked by computer. Then. Cars move along the "belt". A computer stops a car in a zoned area and then activates the robotic spray arm. On a line might be 4 plus vehicles all being sprayed at the same time. Computers are also used to program the EMS (engine management system)
which company have used computer-aided manufacturing system?
The same ones you find in a computer.
Computer-silicon
Robots are used in manufacturing, e.g. welding, assemblying parts. Also bomb disposal.
Silicon
The most common application of Robotics today is manufacturing robots. The industrial arm robots that car commercials often show are one type of manufacturing robots. Robots today may be used in fishing. RoboFisher is a example of such invention. This robot allows anyone to catch fish from his mobile device or computer. The robot itself is placed on the bank of a real lake and you control the entire fishing process.
silicon
No computer ever does anything it isn't told to do. Even when your PC messes up on you, it is still following instructions. So when a computer "controls" a robot, it is actually only following instructions given to it at a former date. Now you can stop worrying about a robot homicide: it can't happen.
No, robots do not have to move to be considered a robot. Movement is just one characteristic of robots, but they can still be classified as robots based on their ability to perform tasks autonomously or semi-autonomously, even if they are stationary.
Mercury is a heavy metal that is very toxic and is a liquid at room temperature. For this reason I do not believe that there would be any mercury in calculators. I do not know why mercury would be used in manufacturing. I don't believe is is commonly used in computer chips. Whether or not mercury is actually used in calculators or in manufacturing of calculators depends varies by manufacturer.
a computer aided design (CAD) system is used to design and model components/objects. Computer aided manufacturing (CAM) software is used to talk to the special machines which physically build things like computer numeric controlled (CNC) lathes, milling machines, 3d printers, etc
Computer aided, means that solution are found using a compter and then analysed and used by human intervention. Compter integrated, means that the solutions are applied directly to the machines in the manufacturing process, without human intervention.