Opening, closing the laptop cover:
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Double click computer mouse
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Read, Hard disk, write, room noise
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Office work, typewriter, environmental sounds
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Alarm, Computer interface
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Signal read information, Computer interface
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Laser printer
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Manual copy machine
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Computer mouse click
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Modem connection, signal, interference
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Floppy disk reading
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Communication room, computer noise
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Computer simulated laser
★★★★★