Hard disk, read, write, room noise:
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Fan noise, shutting, Turning on the laptop
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Old computer keyboard
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Interference, signal, Modem connection
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Franking machine
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Typewriter, environmental sounds, Office work
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Room noise, write, read, Hard disk
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Closes the CD / DVD tray, Opens
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Computer keyboard
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Turning on the computer, shutting, fan noise
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Computer interface, signal read information
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Double click computer mouse
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Matrix printer
★★★★★