Insert the disk into the drive, read the disk, take it out:
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Signal, interference, Modem connection
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Old computer keyboard
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Manual copy machine
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Double click computer mouse
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Opens, disc read, closes the CD / DVD tray
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Computer interface, signal read information
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Laser printer
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Repeatedly pressing a computer mouse
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Turn off the old computer, Turn on
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Computer keyboard
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Office work, general noise
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Read the, Insert the disk into the drive
★★★★★