Modem connection, signal, interference:
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Signal read information, Computer interface
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Turn off the hard drive, Turn on
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CD / DVD drive, disc read
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Pressing a keypad, input error sound
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Computer keyboard
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Turn off the old computer, Turn on
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Turn off the old monitor, Turn on
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Turning on the laptop, shutting, fan noise
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The USB flash drive is inserted, removed
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Communication room, computer noise
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Old computer keyboard
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Laser printer
★★★★★