Hard disk, read, write, room noise:
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Fan noise, shutting, Turning on the laptop
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Computer noise, Communication room
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Signal read information, Computer interface
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Jet printer
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Turn on, turn off the old monitor
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Signal, Modem connection, interference
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General noise, Office work
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Typewriter, environmental sounds, Office work
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Old computer keyboard
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Computer simulated laser
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Closing the laptop cover, Opening
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Matrix printer
★★★★★