Computer interface, signal read information:
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Computer interface, signal read information
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Opening, closing the laptop cover
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Photocopy (photocopy)
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Computer noise, Communication room
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Read the, Insert the disk into the drive
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Floppy disk reading
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Old computer keyboard
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Turning on the laptop, shutting, fan noise
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Jet printer
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Disc read, CD / DVD drive
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Sound signal of a bios computer, bios
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Repeatedly pressing a computer mouse
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