Franking machine:
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Turn on, turn off the old monitor
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Closes the CD / DVD tray, Opens
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Turning on the computer, fan noise, shutting
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Photocopy (photocopy)
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Turn off the old computer, Turn on
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Alarm, Computer interface
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Modem connection, signal, interference
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Office work, typewriter, environmental sounds
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Pressing a keypad, input error sound
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Signals, Computer interface
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Jet printer
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Computer noise, Communication room
★★★★★