Computer interface, alarm:
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Matrix printer
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Closes the CD / DVD tray, Opens
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Disc read, CD / DVD drive
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Computer mouse movement
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Fan noise, shutting, Turning on the laptop
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Computer interface, alarm
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Office work, general noise
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Input error sound, Pressing a keypad
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Floppy disk reading
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Turn on, turn off the hard drive
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Computer interface, signal read information
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Computer simulated laser
★★★★★