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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Manual copy machine
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Floppy disk reading
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Computer mouse movement
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Matrix printer
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Computer keyboard
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Turning on the computer, fan noise, shutting
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Opens, closes the CD / DVD tray
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Signal read information, Computer interface
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Computer noise, Communication room
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Franking machine
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Alarm, Computer interface
★★★★★