Opens, closes the CD / DVD tray, disc read:
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Disc read, closes the CD / DVD tray, Opens
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Computer noise, Communication room
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Computer keyboard
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Turn on, turn off the old computer
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Computer mouse click
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Manual copy machine
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Double click computer mouse
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Alarm, Computer interface
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Turn off the hard drive, Turn on
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Office work, general noise
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Turning on the laptop, shutting, fan noise
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Sound signal of a bios computer, bios
★★★★★