Computer mouse movement:
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Photocopy (photocopy)
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Disc read, CD / DVD drive
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Closing the laptop cover, Opening
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Turn off the old computer, Turn on
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Turning on the laptop, shutting, fan noise
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Computer keyboard
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Laser printer
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Jet printer
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Computer interface, alarm
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Opens, disc read, closes the CD / DVD tray
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Manual copy machine
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Floppy disk reading
★★★★★