Turning on the computer, fan noise, shutting down:
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Computer simulated laser
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Laser printer
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Signal read information, Computer interface
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Disc read, closes the CD / DVD tray, Opens
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Pressing a keypad, input error sound
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Read the, Insert the disk into the drive
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Franking machine
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Jet printer
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Computer interface, signals
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Closes the CD / DVD tray, Opens
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Office work, typewriter, environmental sounds
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Closing the laptop cover, Opening
★★★★★