Jet printer:
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Franking machine
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Closes the CD / DVD tray, Opens
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Matrix printer
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Computer interface, signal read information
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Laser printer
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Turn off the old computer, Turn on
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Signals, Computer interface
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Pressing a keypad, input error sound
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Repeatedly pressing a computer mouse
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Computer simulated laser
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Shutting, Turning on the laptop, fan noise
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Communication room, computer noise
★★★★★