Computer interface, alarm:
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Disc read, Opens, closes the CD / DVD tray
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Communication room, computer noise
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Computer keyboard
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Turn off the old computer, Turn on
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Environmental sounds, Office work, typewriter
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Computer mouse movement
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Floppy disk reading
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Repeatedly pressing a computer mouse
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Opening, closing the laptop cover
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Shutting, Turning on the computer, fan noise
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Jet printer
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Signals, Computer interface
★★★★★