CD / DVD drive, disc read:
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Computer mouse click
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Shutting, fan noise, Turning on the laptop
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Computer interface, signal read information
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Floppy disk reading
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Computer keyboard
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Turn off the hard drive, Turn on
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Disc read, CD / DVD drive
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Turn off the old computer, Turn on
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Modem connection, interference, signal
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General noise, Office work
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Closing the laptop cover, Opening
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Repeatedly pressing a computer mouse
★★★★★