Computer interface, alarm:
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Modem connection, interference, signal
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Turn on, turn off the old computer
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Computer mouse click
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Communication room, computer noise
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General noise, Office work
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Typewriter, Office work, environmental sounds
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Photocopy (photocopy)
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Repeatedly pressing a computer mouse
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The USB flash drive is inserted, removed
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Insert the disk into the drive, read the
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Computer keyboard
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Computer interface, signal read information
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