Electronics is the study of weak current electrical devices that operate by controlling the flow of electrons, or electrically charged particles in a device such as computers, electronic equipment, thermocouples, semiconductors, and so forth. Science of learning tools such as this is a branch of physics, while the forms design and manufacture of electronic circuits is part of electrical engineering, computer engineering, and science / electronics and instrumentation engineering.
Tools that use the basic electronics work is usually referred to as electronic appliances (electronicdevices). Examples of equipment / electronic devices are: Cathode Ray Tube (Cathode Ray Tube, CRT), radios,TVs, cassette recorders, video cassette recorder (VCR), recording VCD, DVD recorders, video cameras, digitalcameras, desk-top personal computers, Laptop computers, PDAs (pocket computers), robots, smart cards, etc.
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