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Data communication, including data transmission and data reception, is the transfer of data, transmitted and received over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires , optical fibers , wireless communication using radio spectrum , storage media and computer buses .
Different types of physical transmission media supporting communication channels. A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking.
In communication, media (sing. medium) are the outlets or tools used to store and deliver semantic information or contained subject matter, described as content. [1] [2] The term generally refers to components of the mass media communications industry, such as print media (), news media, photography, cinema, broadcasting (radio and television), digital media, and advertising. [3]
The communication skills required for successful communication are different for source and receiver. For the source, this includes the ability to express oneself or to encode the message in an accessible way. [8] Communication starts with a specific purpose and encoding skills are necessary to express this purpose in the form of a message.
A physical medium in data communications is the transmission path over which a signal propagates. Many different types of transmission media are used as communications channel. In many cases, communication is in the form of electromagnetic waves.
Many models of communication include the idea that a sender encodes a message and uses a channel to transmit it to a receiver. Noise may distort the message along the way. The receiver then decodes the message and gives some form of feedback. [1] Models of communication simplify or represent the process of communication.
The 10th annual U.S. Media Literacy Week Oct. 21-25 is your chance to answer that question, and to celebrate the importance of critical thinking about media as a fundamental life skill.
Media literacy education has been an interest in the United States since the early 20th century, when high school English teachers first started using film to develop students' critical thinking and communication skills. However, media literacy education is distinct from simply using media and technology in the classroom, a distinction that is ...