what is lcd and led ?
"LED TV" redirects here. For true LED displays, see LED display. For true Liquid-crystal display, see Liquid-crystal display. ...
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RF or Radio Frequency is a term that is often used to describe the number of times per second or oscillation of an electromagnet radiatio... -
Subscriber Identity Module Card Sim card use normally mobile phone. A SIM card (short for subscriber identity module card) is a portabl... -
Fiber optic communication Fiber-optic communication is a method of transmitting information from one place to another by sending p...
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