Opens, closes the CD / DVD tray:
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Turn off the old computer, Turn on
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Laser printer
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Closes the CD / DVD tray, Opens
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Computer simulated laser
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Computer mouse click
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Repeatedly pressing a computer mouse
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Opening, closing the laptop cover
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Computer noise, Communication room
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Turn off the hard drive, Turn on
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Read the, Insert the disk into the drive
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Opens, disc read, closes the CD / DVD tray
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Modem connection, interference, signal
★★★★★