Opens, closes the CD / DVD tray:
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Franking machine
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Fan noise, shutting, Turning on the laptop
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Input error sound, Pressing a keypad
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Laser printer
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Office work, typewriter, environmental sounds
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Insert the disk into the drive, read the
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Bios, Sound signal of a bios computer
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Computer interface, signal read information
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Signal, interference, Modem connection
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Computer simulated laser
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Matrix printer
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Disc read, closes the CD / DVD tray, Opens
★★★★★