Computer interface, signal read information:
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Removed, The USB flash drive is inserted
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Double click computer mouse
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Manual copy machine
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Alarm, Computer interface
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Jet printer
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Fan noise, shutting, Turning on the computer
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Old computer keyboard
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Pressing a keypad, input error sound
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Read, write, Hard disk, room noise
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Franking machine
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Insert the disk into the drive, read the
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Closes the CD / DVD tray, Opens
★★★★★