electronic components 'Electronics' is the branch of science and technology which makes use of the
controlled motion of electrons through different media and vacuum. The ability
to control electron flow is usually applied to information handling or device
control. Electronics is distinct from electrical science and technology, which
deals with the generation, distribution, control and application of electrical
power. This distinction started around 1906 with the invention by Lee De Forest
of the triode, which made electrical amplification possible with a non-
mechanical device. Until 1950 this field was called "radio technology" because
its principal application was the design and theory of radio transmitters,
receivers and vacuum tubes. Most electronic devices today use semiconductor components to perform electron
control. The study of semiconductor devices and related technology is considered
a branch of physics, whereas the design and construction of electronic circuits
to solve practical problems come under electronics engineering. This article
focuses on engineering aspects of electronics.
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