Computer mouse movement:
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Turn off the old computer, Turn on
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Input error sound, Pressing a keypad
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Environmental sounds, typewriter, Office work
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Turn on, turn off the old monitor
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Computer mouse click
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Room noise, read, write, Hard disk
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Signal read information, Computer interface
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Turning on the computer, fan noise, shutting
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Opening, closing the laptop cover
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Modem connection, interference, signal
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Computer noise, Communication room
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The USB flash drive is inserted, removed
★★★★★