Communication
Communication (from Latin commūnicāre, meaning "to share") is the act of conveying intended meanings from one entity or group to another through the use of mutually understood signs and semiotic rules.
Electronics
Electronics is the discipline dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors. Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes, integrated circuits, optoelectronics, and sensors, associated passive electrical components, and interconnection technologies. Commonly, electronic devices contain circuitry consisting primarily or exclusively of active semiconductors supplemented with passive elements; such a circuit is described as an electronic circuit.
Engineering
Engineering is the creative application of science, mathematical methods, and empirical evidence to the innovation, design, construction, operation and maintenance of structures, machines, materials, devices, systems, processes, and organizations. The discipline of engineering encompasses a broad range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied science, and types of application. See glossary of engineering.
Radio
Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.
Radio
First radio, then television, have assaulted and overturned the privacy of the home, the real American privacy, which permitted the development of a higher and more independent life within democratic society.
Allan Bloom, The Closing of the American Mind (New York: 1988), p. 58
Radio
The FCC, the Federal Communications Commission, decided all by itself that radio and television were the only two parts of American life not protected by the free speech provisions of the first amendment to the Constitution. I'd like to repeat that, because it sounds... vaguely important! The FCC—an appointed body, not elected, answerable only to the president—decided on its own that radio and television were the only two parts of American life not protected by the first amendment to the Constitution. Why did they decide that? Because they got a letter from a minister in Mississippi! A Reverend Donald Wildman in Mississippi heard something on the radio that he didn't like. Well, Reverend, did anyone ever tell you there are two KNOBS on the radio? Two. Knobs. On the radio. Of course, I'm sure the reverend isn't that comfortable with anything that has two knobs on it... But hey, reverend, there are two knobs on the radio! One of them turns the radio OFF, and the other one [slaps his head] CHANGES THE STATION! Imagine that, reverend, you can actually change the station! It's called freedom of choice, and it's one of the principles this country was founded upon. Look it up in the library, reverend, if you have any of them left when you've finished burning all the books.
George Carlin, What Am I Doing in New Jersey? (1988)
Engineering
Only among those who were engaged in a particular activity did their language remain unchanged; so, for instance, there was one for all the architects, one for all the carriers of stones, one for all the stone-breakers, and so on for all the different operations. As many as were the types of work involved in the enterprise, so many were the languages by which the human race was fragmented; and the more skill required for the type of work, the more rudimentary and barbaric the language they now spoke. But the holy tongue remained to those who had neither joined in the project nor praised it, but instead, thoroughly disdaining it, had made fun of the builders' stupidity.
Dante Alighieri, De vulgari eloquentia, Chapter VII