The USB flash drive is inserted, removed from the usb connector:
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Removed, The USB flash drive is inserted
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Turn off the hard drive, Turn on
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Matrix printer
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Insert the disk into the drive, read the
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Computer simulated laser
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Photocopy (photocopy)
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Turn off the old monitor, Turn on
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Turn off the old computer, Turn on
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Computer mouse click
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Disc read, CD / DVD drive
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Floppy disk reading
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Repeatedly pressing a computer mouse
★★★★★