Turning on the laptop, fan noise, shutting down:
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Turn off the old monitor, Turn on
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Removed, The USB flash drive is inserted
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Opening, closing the laptop cover
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Bios, Sound signal of a bios computer
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Closes the CD / DVD tray, Opens
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Old computer keyboard
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Interference, signal, Modem connection
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Turn on, turn off the hard drive
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Turn on, turn off the old computer
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Communication room, computer noise
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Repeatedly pressing a computer mouse
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Computer interface, alarm
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