Opening, closing the laptop cover:
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Turn off the old monitor, Turn on
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Matrix printer
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Closing the laptop cover, Opening
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Computer mouse click
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Laser printer
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Signals, Computer interface
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Signal read information, Computer interface
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Photocopy (photocopy)
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Computer keyboard
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Removed, The USB flash drive is inserted
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Turning on the computer, shutting, fan noise
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Floppy disk reading
★★★★★