Opening, closing the laptop cover:
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Insert the disk into the drive, read the
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Disc read, CD / DVD drive
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Sound signal of a bios computer, bios
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Manual copy machine
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Computer simulated laser
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Franking machine
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Opening, closing the laptop cover
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Input error sound, Pressing a keypad
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Floppy disk reading
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Repeatedly pressing a computer mouse
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Matrix printer
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Computer interface, signals
★★★★★