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Of course, we also have some intangible attributes, such as intelligence and morality, but on the sheer physical level, the list above about covers it. A basic typical robot has a movable physical structure, a motor of some sort, a sensor system, a power supply and a computer "brain" that controls all of these elements. Essentially, robots are human-made versions of animal life - they are machines that replicate human and animal behavior. Joseph Engelberger, a pioneer in industrial robotics, once remarked, "I don't know how to define one, but I know one when I see one!" If you consider all the different machines people call robots, you can see that it's nearly impossible to come up with a comprehensive definition. Everybody has a different idea of what constitutes a robot. All of these things are considered robots, at least by some people. But you could say that most people define a robot as anything that they recognize as a robot.



(Image: [[https://images.pexels.com/photos/8961555/pexels-photo-8961555.jpeg|https://images.pexels.com/photos/8961555/pexels-photo-8961555.jpeg]])Most roboticists (people who build robots) use a more precise definition. They specify that robots have a reprogrammable brain (a computer) that moves a body. By this definition, robots are distinct from other movable machines such as tractor-trailer trucks because of their computer elements. Even considering sophisticated onboard electronics, the driver controls most elements directly by way of various mechanical devices. Robots are distinct from ordinary computers in their physical nature - normal computers don't have physical bodies attached to them. In the next section, we'll look at the major elements found in most robots today. Some only have motorized wheels, and others have dozens of movable segments, typically made of metal or plastic. Like the bones in your body, the individual segments are connected together with joints. Robots spin wheels and pivot jointed segments with some sort of actuator. Some robots use electric motors and solenoids as actuators; some use a hydraulic system; and some use a pneumatic system (a system driven by compressed gases).



Robots may use a combination of all these actuator types. Most robots either have batteries or plug into the wall. Some may use solar power or fuel cells. Hydraulic robots also need a pump to pressurize the hydraulic fluid,  [[https://git.izen.live/fxlmaria098660/prime-boosts-pills1460/wiki/Comfortable+and+Bold|git.izen.live]] and pneumatic robots need an air compressor or compressed-air tanks. The actuators are all wired to electrical circuits. The circuits power electrical motors and solenoids directly and activate hydraulic systems by manipulating electrical valves. The valves determine the pressurized fluid's path through the machine. To move a hydraulic leg, for example, the robot's controller would open the valve leading from the fluid pump to a piston cylinder attached to that leg. The pressurized fluid would extend the piston, swiveling the leg forward. Typically, in order to move their segments in two directions, robots use pistons that can push both ways. The robot's computer controls everything attached to the circuits. To move the robot, the computer switches on all the necessary motors and  [[https://code.ioms.cc/rncsharyl81456|www.PrimeBoosts.com]] valves.



Many robots are reprogrammable - to change the robot's behavior, you update or change the software that gives the robot its instructions. Not all robots have sensory systems, and few can see, hear, smell or taste. The most common robotic sense is the sense of movement - the robot's ability to monitor its own motion. One way to do this is to use a laser on the bottom of the robot to illuminate the floor while a camera measures the distance and speed traveled. This is the same basic system used in computer mice. Roomba vacuums use infrared light to detect objects in their path and photoelectric cells measure changes in light. These are the basic nuts and bolts of robotics. R.U.R." In the play, machine workers overthrow their human creators when a scientist gives them emotions. Dozens of authors and filmmakers have revisited this scenario over the years. Isaac Asimov took a more optimistic view in several novels and short stories. In his works, robots are benign, helpful beings that are programmed to adhere to a code of nonviolence against humans - the "Laws of Robotics.
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