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Utility pole with electric lines (top) and telephone cables. Fixed telephone lines per 100 inhabitants, 1997–2007. Cross section of telephone cable of 1,800 twisted pairs, 1922.
Mobile phone tower Mobile telephone antennas tower. Mobile telephony is the provision of wireless telephone services to mobile phones, distinguishing it from fixed-location telephony provided via landline phones.
Wireless communication (or just wireless, when the context allows) is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer.
Telecommunication is a compound noun of the Greek prefix tele-(τῆλε), meaning distant, far off, or afar, [6] and the Latin verb communicare, meaning to share.Its modern use is adapted from the French, [7] because its written use was recorded in 1904 by the French engineer and novelist Édouard Estaunié.
An optical communication system is any form of communications system that uses light as the transmission medium. Equipment consists of a transmitter, which encodes a message into an optical signal, a communication channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal.
Examples of communications channels include: A connection between initiating and terminating communication endpoints of a telecommunication circuit.; A single path provided by a transmission medium via either
The information exchanged between devices through a network or other media is governed by rules and conventions that can be set out in communication protocol specifications.
Communication is a transactional communication—that is, a dynamic process created by the participants through their interaction with each other. [11] In short, communication is an interactive process in which both parties need to participate.