Computer interface, signals:
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Bios, Sound signal of a bios computer
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Closes the CD / DVD tray, Opens
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Jet printer
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Computer simulated laser
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Computer interface, signals
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Manual copy machine
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Repeatedly pressing a computer mouse
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Fan noise, Turning on the computer, shutting
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Floppy disk reading
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Signal read information, Computer interface
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Laser printer
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Opens, closes the CD / DVD tray, disc read
★★★★★