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Human communication was initiated with the origin of speech approximately 100,000 BCE. [1] Symbols were developed about 30,000 years ago. The imperfection of speech allowed easier dissemination of ideas and eventually resulted in the creation of new forms of communication, improving both the range at which people could communicate and the longevity of the information.
The communications efficiency of the Morse Code preceded that of the Huffman code in digital communications by over 100 years, but Morse and Vail developed the code purely empirically, with shorter codes for more frequent letters. The submarine cable across the English Channel, wire coated in gutta percha, was laid in 1851. [14]
The Engineering and Technology History Wiki (ETHW) is a MediaWiki-based website dedicated to the history of technology. [1] It started operating in 2015. It consists of articles, first-hand accounts, oral histories, landmarks and milestones. [2]
English physicist J. J. Thomson invented waveguides. 1894: Italian inventor Guglielmo Marconi begins developing the first radio wave based wireless telegraphy communication system [6] [7] 1895: Indian physicist Jagadish Chandra Bose conducts experiments in extremely high frequency millimetre waves using a semiconductor junction to detect radio ...
Information and communications technology (ICT) is an extensional term for information technology (IT) that stresses the role of unified communications [1] and the integration of telecommunications (telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage and audiovisual, that enable users to access, store, transmit, understand and ...
Advancements in communications technology translate into advancements in the economic system and political system, distribution of wealth, social inequality and other spheres of social life. He also differentiates societies based on their level of technology, communication, and economy: Agriculture preceded writing in the history of technology.
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Printer-friendly PDF version of the Communication Theory Wikibook. Licensing Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License , Version 1.2 or any later version published by the Free Software Foundation ; with no Invariant Sections, no Front-Cover Texts, and no Back ...