Telecommunication is the science and practice of transmitting information by electromagnetic means.

Communication is talking to someone or thing not necessarily through technological means. Telecommunication, however, is talking through technology meaning phones, Internet, radio etc...

In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages such as coded drumbeats, lung-blown horns, and loud whistles.

In modern times, telecommunications involves the use of electrical devices such as the telegraph, telephone, and teleprinter, as well as the use of radio and microwave communications, as well as fiber optics and their associated electronics, plus the use of the orbiting satellites and the Internet.

A revolution in wireless telecommunications began in the 1900s (decade) with pioneering developments in wireless radio communications by Nikola Tesla and Guglielmo Marconi. Marconi won the Nobel Prize in Physics in 1909 for his efforts. Other highly notable pioneering inventors and developers in the field of electrical and electronic telecommunications include Charles Wheatstone and Samuel Morse (telegraph), Alexander Graham Bell (telephone), Edwin Armstrong, and Lee de Forest (radio), as well as John Logie Baird and Philo Farnsworth (television).

The world's effective capacity to exchange information through two-way telecommunication networks grew from 281 petabytes of (optimally compressed) information in 1986, to 471 petabytes in 1993, to 2.2 (optimally compressed) exabytes in 2000, and to 65 (optimally compressed) exabytes in 2007. This is the informational equivalent of 2 newspaper pages per person per day in 1986, and 6 entire newspapers per person per day by 2007. Given this growth, telecommunications play an increasingly important role in the world economy and the global telecommunications industry was about a $4.7 trillion sector in 2012. The service revenue of the global telecommunications industry was estimated to be $1.5 trillion in 2010, corresponding to 2.4% of the world’s gross domestic product (GDP).

Read more about Telecommunication:  Etymology, Key Concepts, Society and Telecommunication, Telecommunication and Government, Telecommunication By Region

Other articles related to "telecommunications, telecommunication":

Bureau D'études Des Postes Et Télécommunications D'outre-mer - History
... From 1956, French Overseas posts and telecommunications were reorganized and decentralized consequently to the independence of the protectorates of Morocco and Tunisia, and in prevision of the ... and juridic affair service helped to organize postal and telecommunication networks in these countries, including the redaction of regulations and laws ... trained the managers at CIPEC-PT, a post and telecommunication school in Toulouse ...
List Of Video Telecommunication Services And Product Brands
... This list of video telecommunication services and product brands is for groupings of video telecommunication services and for manufacturers' brands of videophones, webcams and video ... The first section includes video telecommunication devices such as videophones, videoconferencing and telepresence systems, webcams and related ...
Telecommunication By Region
... Telecommunications in Africa Sovereign states Algeria Angola Benin Botswana Burkina Faso Burundi Cameroon Cape Verde Central African Republic Chad Comoros Democratic Republic of the Congo Republic of the Congo ...
Schwalldorf - Infrastructure - Telecommunication
... Several suburbs of Rottenburg are concerned by a slow Internet connection ... In July 2008 a citizens' group for DSL was founded in Bieringen, a neighbor village of Schwalldorf ...