Computer interface, alarm:
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Input error sound, Pressing a keypad
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Matrix printer
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Office work, typewriter, environmental sounds
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Closes the CD / DVD tray, Opens
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Double click computer mouse
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Disc read, Opens, closes the CD / DVD tray
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Photocopy (photocopy)
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Office work, general noise
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Turn off the old monitor, Turn on
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Modem connection, signal, interference
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Computer simulated laser
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Write, Hard disk, read, room noise
★★★★★