Question

which of the following is essential for recording and playing back audio in a computer system a) bar code reader b) micr c) microphone d) printer e) digital camera f) joystick g) speaker h) light pen

Answer 1

Option H and G)

Microphone and speaker.

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Answer 2

Microphone and Speakers are essential for recording and playing back audio in a computer system. Hence, option 'C' and 'G' are correct.

• Bar code reader is an input device used to retrieve information from the bar code given on any product. So, it is not the correct answer.
• Mike is a device which is use to enhance the sound or record the sound using the rape recorder. So, it is also not the correct answer.
• Microphone is a voice recording device that translates the air vibrations and help the user to record different types of voices. So, it is essential for recording in the computer system.
• Printer is an output device used to print images and documents on paper. So, it is also not the correct answer.
• Digital Camera is generally used in photography to take professional pictures and transfer the pictures directly into the computer. So, it is also not the correct answer.
• Joystick is also an input device used to play games on the computer. So, it is also not the correct answer.
• Speaker is an output device used to listen any kind of sound by amplifying it. So, it is also essential for playing back audio in the computer system.

Hence, Microphone and Speakers are essential for recording and playing back audio in a computer system. And, option 'C' and 'G' are correct.

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