Computer interface, signals:
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Franking machine
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Insert the disk into the drive, read the
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Turn off the hard drive, Turn on
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Photocopy (photocopy)
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Computer mouse click
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Typewriter, environmental sounds, Office work
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Double click computer mouse
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Closing the laptop cover, Opening
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Shutting, fan noise, Turning on the laptop
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Removed, The USB flash drive is inserted
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Turn on, turn off the old computer
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Floppy disk reading
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