How does it work with every day life?
- A TV remote controller sends control command information to your TV, commanding it to go to the sports channel, or turn the sound up.
- A remote garage door controller sends control command information to a garage door, commanding it to open or close.
- A wireless sound system sends audio information (music or TV sound) to your wireless headphones or speakers.
- A wireless network-connected laptop computer sends and receives packets of complex data, allowing it to talk to other computers on the network.
- A cellular phone system routes packets of telecommunications information simultaneously on many channels in vast quantities.
Information may travel in one direction or in both directions...from A to B and from B to A. This is where two wireless devices talk to each other in a two-way conversation. But whatever the nature or complexity of the information, it needs that something to carry it.