Hard disk, read, write, room noise:
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Computer interface, signals
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Photocopy (photocopy)
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Computer mouse click
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Floppy disk reading
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Computer noise, Communication room
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Double click computer mouse
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Write, read, room noise, Hard disk
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Matrix printer
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Opens, closes the CD / DVD tray
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Office work, typewriter, environmental sounds
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Jet printer
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Interference, signal, Modem connection
★★★★★