Computer simulated laser:
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Closing the laptop cover, Opening
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Double click computer mouse
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Old computer keyboard
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Manual copy machine
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Office work, typewriter, environmental sounds
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Photocopy (photocopy)
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Input error sound, Pressing a keypad
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Jet printer
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Modem connection, interference, signal
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Signals, Computer interface
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Closes the CD / DVD tray, Opens, disc read
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Turn off the old monitor, Turn on
★★★★★