Opens, closes the CD / DVD tray:
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Computer simulated laser
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Floppy disk reading
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Insert the disk into the drive, read the
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Signal read information, Computer interface
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Fan noise, Turning on the laptop, shutting
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Photocopy (photocopy)
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Pressing a keypad, input error sound
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Room noise, read, write, Hard disk
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Typewriter, Office work, environmental sounds
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Laser printer
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Repeatedly pressing a computer mouse
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Turn off the old computer, Turn on
★★★★★