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Data transmission, digital transmission or digital communications is the transfer of data over a point-to-point or point-to-multipoint communication channel. Examples of such channels include copper wires, optical fibers, wireless communication channels, storage media and computer buses.
Digital is defined as any data represented by a series of digits, and media refers to methods of broadcasting or communicating this information. Together, digital media refers to mediums of digitized information broadcast through a screen and/or a speaker. [1]
Communications can be encoded as analogue or digital signals, which may in turn be carried by analogue or digital communication systems. Analogue signals vary continuously with respect to the information, while digital signals encode information as a set of discrete values (e.g., a set of ones and zeroes). [41]
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Digital technology plays an important role in 21st century life. In the United States, nearly two-thirds of people own smartphones. [11] Using social networking services and online forums, people are able to communicate with other users, regardless of geographic region or time constraints.
Communication studies, also referred to as communication science, is the academic discipline studying communication. It is closely related to semiotics, with one difference being that communication studies focuses more on technical questions of how messages are sent, received, and processed.
Digital Communication Network, founded in 2016 after the same name program by the US Department of State, [2] is a 6.000 member strong collaborative network that connects professionals of the digital age from a variety of backgrounds, in order to generate ideas, tools, and products for media outlets, civil society organizations, businesses and public authorities.
In digital communications, a digital signal is a continuous-time physical signal, alternating between a discrete number of waveforms, [3] representing a bitstream. The shape of the waveform depends the transmission scheme, which may be either a line coding scheme allowing baseband transmission; or a digital modulation scheme, allowing passband ...