Turn on, turn off the hard drive:
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Old computer keyboard
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Opens, disc read, closes the CD / DVD tray
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Read the, Insert the disk into the drive
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Alarm, Computer interface
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Modem connection, interference, signal
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Signal read information, Computer interface
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Computer keyboard
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Computer interface, signals
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Repeatedly pressing a computer mouse
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Turn off the old computer, Turn on
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Turn on, turn off the old monitor
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Computer noise, Communication room
★★★★★