For you, reaching out and picking up an object requires little thought. But for a microprocessor, such actions require lots of precise instructions. Programming a robotic arm to make something like a peanut butter-and-jelly sandwich could take hundreds of instructions. That is why in factories using robotic devices, each device is usually designed and programmed to do just several steps of the manufacturing process over and over again. The item being manufactured goes from one robotic station to the next until it is completed.