The definition of telecommunication is quite clear and straightforward. It is the exchange of information between two or more entities that includes the use of technology. The communication channels that transmit information can require a physical medium (cables) or electromagnetic waves.

A basic system consists of a transmitter, s transmission medium and a receiver. A collection of transmitters and receivers is known as a telecommunication network. There are many types of telecommunication networks, the most common being:

  • Computer networks
  • The internet
  • The telephone network
  • The global Telex network
  • The aeronautical ACARS network

Common, everyday products, like TVs, phones and computers, rely on reliable networks and localization makes it possible they operate globally.