Speaker
Speaker : (ICT) An output device for handling sound. A speaker takes audio electrical signals and converts them into actual sound that people can hear. The audio signal may come directly from a sound card installed within a computer. For higher power, this signal may be fed through an audio amplifier before being passed on to the speakers. Another variation of speaker provides a cable to the earphone jack on the computer to pick up the audio along with an additional USB cable to plug in to supply the power
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