Computer interface, signals:
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Computer mouse movement
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Opens, closes the CD / DVD tray
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Double click computer mouse
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Old computer keyboard
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Floppy disk reading
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Closing the laptop cover, Opening
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Room noise, read, Hard disk, write
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Laser printer
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Computer simulated laser
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Disc read, CD / DVD drive
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Repeatedly pressing a computer mouse
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Jet printer
★★★★★