Manual copy machine:
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Computer mouse movement
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Computer simulated laser
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Computer interface, alarm
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Old computer keyboard
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Opening, closing the laptop cover
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Closes the CD / DVD tray, Opens
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Computer mouse click
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Turn off the hard drive, Turn on
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Interference, Modem connection, signal
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Communication room, computer noise
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Laser printer
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Office work, typewriter, environmental sounds
★★★★★