Opens, closes the CD / DVD tray:
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Computer keyboard
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Environmental sounds, typewriter, Office work
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Repeatedly pressing a computer mouse
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Hard disk, room noise, write, read
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Computer mouse movement
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Closes the CD / DVD tray, Opens
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Franking machine
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Opening, closing the laptop cover
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Double click computer mouse
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Computer interface, signal read information
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Insert the disk into the drive, read the
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Floppy disk reading
★★★★★
