"Telecommunication, often used in its plural form, is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems."
This type of communication involves the use of technology such as telephones, video conferencing, and the internet to communicate with others.
Basics of Communication: Understanding the fundamental principles of transmitting information from one point to another.
Electronics: The study of the behavior and effects of electrons in various materials and devices, and their practical applications in creating telecommunications equipment.
Transmission Line Theory: The study of the behavior of waves that propagate along transmission lines, including their reflection and transmission characteristics.
Signal Processing: The process of manipulating and transforming signals to achieve a desired outcome, such as reducing noise or improving signal quality.
Information Theory: The study of the quantification of information and the transmission of that information over a channel, including topics such as entropy, compression, and error-correcting codes.
Telephony: The technology and methods of transmitting voice over a distance, including topics such as analog and digital voice transmission, signaling, and routing.
Data Communications: The technology and methods of transmitting data over a distance, including topics such as modulation, multiplexing, and protocols.
Wireless Communications: The technology and methods of transmitting information without the use of physical connections, including topics such as antennas, propagation, and cellular systems.
Networks: The interconnected system of devices and services that allow for communication and information exchange between multiple points, including topics such as topology, protocols, and security.
Internet of Things (IoT): The network of physical devices, vehicles, and buildings embedded with electronics, software, sensors, and connectivity which enables these objects to connect and exchange data.
Fiber Optics: The technology that uses glass or plastic threads to transmit data, including topics such as light sources and detectors, multiplexing, and amplifiers.
Satellite Communications: The technology that uses satellites to transmit information from one point on the earth to another, including topics such as orbits, transponders, and communication protocols.
Telecommunication Standards: The set of guidelines and protocols developed by various organizations or standard committees to ensure interoperability and compatibility between different telecommunication systems.
"It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency."
"The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals to electrical cable and electromagnetic radiation, including light."
"Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions."
"Other examples of pre-modern long-distance communication included audio messages, such as coded drumbeats, lung-blown horns, and loud whistles."
"20th- and 21st-century technologies for long-distance communication usually involve electrical and electromagnetic technologies, such as telegraph, telephone, television and teleprinter, networks, radio, microwave transmission, optical fibre, and communications satellites."
"The early telecommunication networks were created with metallic wires as the physical medium for signal transmission."
"These included Charles Wheatstone and Samuel Morse (inventors of the telegraph), Antonio Meucci and Alexander Graham Bell (some of the inventors and developers of the telephone), Edwin Armstrong and Lee de Forest (inventors of radio), as well as Vladimir K. Zworykin, John Logie Baird and Philo Farnsworth (some of the inventors of television)."
"With the proliferation of digital technologies since the 1960s, voice communication has been gradually supplemented by data."
"The limitations of metallic data transmission prompted the development of optics."
"The development of media-independent Internet technologies provided access to world-wide services for individual users without limitations to location or time."