Computer interface, signal read information:
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Office work, general noise
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Opens, disc read, closes the CD / DVD tray
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Read the, Insert the disk into the drive
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Photocopy (photocopy)
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Shutting, Turning on the laptop, fan noise
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Closes the CD / DVD tray, Opens
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Laser printer
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Signal, Modem connection, interference
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Computer interface, signals
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Signal read information, Computer interface
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Turn off the old computer, Turn on
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CD / DVD drive, disc read
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