COMPUTER FUNDAMENTALS

COMPUTER ARCHITECTURE

INPUTOUTPUT DEVICES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the purpose of a microphone
A
to record/transmit audio data
B
to record/transmit text data
C
to record/transmit infrared data
D
to play audio data
Explanation: 

Detailed explanation-1: -A microphone is a device that translates sound vibrations in the air into electronic signals and scribes them to a recording medium or over a loudspeaker. Microphones enable many types of audio recording devices for purposes including communications of many kinds, as well as music vocals, speech and sound recording.

Detailed explanation-2: -A microphone converts sound waves to audio signals, which are then converted to digital audio data and sent/inputted into a computer. Microphones typically output analog audio signals (AC voltages) that require conversion to digital data to be compatible with a computer.

Detailed explanation-3: -Also known as a radio microphone, it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the microphone by radio waves to a nearby receiver unit, which recovers the audio.

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