Computer interface, signals:
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Computer interface, alarm
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Photocopy (photocopy)
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Signal, Modem connection, interference
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Jet printer
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Communication room, computer noise
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Turn off the old computer, Turn on
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Signal read information, Computer interface
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Computer interface, signals
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Floppy disk reading
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Removed, The USB flash drive is inserted
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Opens, closes the CD / DVD tray
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Office work, typewriter, environmental sounds
★★★★★