CD / DVD drive, disc read:
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Opens, closes the CD / DVD tray
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Insert the disk into the drive, read the
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Office work, general noise
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Photocopy (photocopy)
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Read, write, Hard disk, room noise
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Old computer keyboard
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Signals, Computer interface
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Double click computer mouse
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Signal read information, Computer interface
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Turning on the laptop, fan noise, shutting
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Computer simulated laser
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CD / DVD drive, disc read
★★★★★