Opens, closes the CD / DVD tray, disc read:
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Insert the disk into the drive, read the
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Environmental sounds, typewriter, Office work
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Double click computer mouse
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Computer keyboard
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General noise, Office work
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Opening, closing the laptop cover
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Turning on the laptop, shutting, fan noise
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Room noise, write, Hard disk, read
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Closes the CD / DVD tray, Opens
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Communication room, computer noise
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Jet printer
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Turn off the hard drive, Turn on
★★★★★