Web Definition: Electronics
Electronics is the study & use of electrical devices that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves & semiconductors. The pure study of such devices is considered as a branch of physics, while the design & construction of electronic circuits to solve practical problems is part of the fields of electrical, electronic & computer engineering. The main uses of electronic circuits are the controlling, processing & distribution of information & the conversion & distribution of electric power. Both of these uses involve the creation or detection of electromagnetic fields & electric currents. More broadly, most electronics systems fall into the category of either control systems or communication systems. While electricity had been used for some time to transmit data over telegraphs & telephones, the development of electronics truly began in earnest with the advent of radio. Today, electronic devices perform a much wider variety of tasks.
Read More »Dictionary Entry: the branch of physics that deals with the behavior of electrons.
Electronics is primarily concerned with phenomena other than simple conduction, such as emission of electrons, storage of electrical charge, the effects of electrical fields on the conduction of electrons through a circuit, and amplification and manipulation of electric signals such as voltage or current by design of circuits. Electronics also encompasses the application of such fundamental principles to the construction of devices using the manipulation of electrons in their operation, known as electronic devices.
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