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Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information with an immediacy comparable to face-to-face communication. As such, slow communications technologies like postal mailand pneumatic tubesare excluded from the definition. [1][2]Many transmission mediahave been used for telecommunications throughout history, from smoke signals, beacons ...
Telecommunications industry The telecommunications industries within the sector of information and communication technology is made up of all telecommunications / telephone companies and internet service providers and plays a crucial role in the evolution of mobile communications and the information society .
The history of telecommunication began with the use of smoke signals and drums in Africa, Asia, and the Americas. In the 1790s, the first fixed semaphore systems emerged in Europe. However, it was not until the 1830s that electrical telecommunication systems started to appear. This article details the history of telecommunication and the ...
Examples of telecommunications networks include computer networks, the Internet, the public switched telephone network (PSTN), the global Telex network, the aeronautical ACARS network, [1] and the wireless radio networks of cell phone telecommunication providers.
A communications system or communication system is a collection of individual telecommunications networks systems, relay stations, tributary stations, and terminal equipment usually capable of interconnection and interoperation to form an integrated whole. The components of a communications system serve a common purpose, are technically ...
Local exchange carrier ( LEC) is a regulatory term in telecommunications for the local telephone company. In the United States, wireline telephone companies are divided into two large categories: long-distance ( interexchange carrier, or IXCs) and local (local exchange carrier, or LECs). This structure is a result of 1984 divestiture of then ...
The following outline is provided as an overview of and topical guide to telecommunication: Telecommunication – the transmission of signals over a distance for the purpose of communication. In modern times, this process almost always involves the use of electromagnetic waves by transmitters and receivers, but in earlier years it also involved ...
In telecommunication, a telecommunications service is a service provided by a telecommunications provider, or a specified set of user - information transfer capabilities provided to a group of users by a telecommunications system . The telecommunications service user is responsible for the information content of the message.