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Outline of telecommunication : ウィキペディア英語版 | Outline of telecommunication
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 the use of drums and visual signals such as smoke, fire, beacons, semaphore lines and other optical communications. ==Types of telecommunication networks==
(詳細はComputer networks * * ARPANET * * Ethernet * * Internet * * Wireless networks * Public switched telephone networks (PSTN) * Packet switched networks * Radio networks * Television networks
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Outline of telecommunication」の詳細全文を読む
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