Opens, closes the CD / DVD tray, disc read:
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Shutting, fan noise, Turning on the computer
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The USB flash drive is inserted, removed
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Computer keyboard
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Room noise, write, Hard disk, read
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Insert the disk into the drive, read the
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Repeatedly pressing a computer mouse
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Computer simulated laser
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Environmental sounds, Office work, typewriter
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Office work, general noise
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Fan noise, shutting, Turning on the laptop
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Opening, closing the laptop cover
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Communication room, computer noise
★★★★★