COMPUTER HARDWARE
OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Can be connected to a computer, lights up in response to electrical signals.
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External connector, similar to a USB port but developed by Apple, that provides a high-speed connection between a computer and peripheral devices.
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Text sometimes cant be read properly, formatting can be lost
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Used to process cheques by banks
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Detailed explanation-1: -A Light Emitting Diode (LED) is a semiconductor device, which can emit light when an electric current passes through it. To do this, holes from p-type semiconductors recombine with electrons from n-type semiconductors to produce light.
Detailed explanation-2: -A light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. When current passes through an LED, the electrons recombine with holes emitting light in the process.
Detailed explanation-3: -A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons.
Detailed explanation-4: -Compared with conventional light sources that first convert electrical energy into heat, and then into light, LEDs (Light Emitting Diodes) convert electrical energy directly into light, delivering efficient light generation with little-wasted electricity.