A remote control is a electronic device used for the remote operation of a machine.
The term is most commonly used to refer to a remote control for televisions or other consumer electronics such as stereo systems and DVD players, and to turn-on and off a mains plug. Remote controls for these devices are usually small handheld objects with an array of buttons for adjusting various settings such as television channel, track number, and volume. In fact, for the majority of modern devices with this kind of control, the remote contains all the function controls while the controlled device itself only has a handful of essential primary controls. Most of these remotes communicate to their respective devices via infrared signals and a few via radio signals. They are usually powered by small AA or AAA size batteries.
One of the earliest examples of remote control was developed in 1898 by Nikola Tesla, and described in his patent, U.S. Patent 613809, named Method of and Apparatus for Controlling Mechanism of Moving Vehicle or Vehicles . The first remote controlled model airplane flew 1936. The use of remote control technology for military purposes was worked intensively during the Second World War, one result of this was the German Wasserfall missile. The first remote intended to control a television was developed by Zenith Radio Corporation in the early 1950s. The remote â€” unofficially called â€œLazy Bonesâ€