Opens, closes the CD / DVD tray, disc read:
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Opens, closes the CD / DVD tray, disc read
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Photocopy (photocopy)
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Opening, closing the laptop cover
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Turn off the old computer, Turn on
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Turn off the hard drive, Turn on
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Alarm, Computer interface
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Repeatedly pressing a computer mouse
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Double click computer mouse
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Computer simulated laser
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Turn on, turn off the old monitor
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Computer keyboard
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Typewriter, environmental sounds, Office work
★★★★★