Laser printer:
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Computer simulated laser
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Typewriter, environmental sounds, Office work
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Franking machine
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Modem connection, interference, signal
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Opening, closing the laptop cover
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Signal read information, Computer interface
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Fan noise, Turning on the computer, shutting
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Computer mouse click
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Insert the disk into the drive, read the
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Floppy disk reading
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Manual copy machine
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Computer interface, alarm
★★★★★