Modem connection, signal, interference:
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Alarm, Computer interface
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Turn off the old computer, Turn on
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Laser printer
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Repeatedly pressing a computer mouse
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Computer mouse click
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Photocopy (photocopy)
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Computer noise, Communication room
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Input error sound, Pressing a keypad
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Modem connection, interference, signal
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General noise, Office work
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Computer simulated laser
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Opening, closing the laptop cover
★★★★★