Computer interface, signal read information:
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Turn on, turn off the old computer
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Matrix printer
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Signal read information, Computer interface
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Computer mouse movement
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Computer simulated laser
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Read the, Insert the disk into the drive
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Alarm, Computer interface
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Floppy disk reading
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Opening, closing the laptop cover
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Photocopy (photocopy)
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Double click computer mouse
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Manual copy machine
★★★★★
