Turn on, turn off the old monitor:
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The USB flash drive is inserted, removed
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Modem connection, signal, interference
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Old computer keyboard
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Turn off the old monitor, Turn on
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Alarm, Computer interface
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Read the, Insert the disk into the drive
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Turn off the old computer, Turn on
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Turn on, turn off the hard drive
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Computer mouse movement
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Computer noise, Communication room
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Disc read, CD / DVD drive
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Write, read, Hard disk, room noise
★★★★★