Turning on the computer, fan noise, shutting down:
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Repeatedly pressing a computer mouse
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Opens, closes the CD / DVD tray
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Typewriter, environmental sounds, Office work
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Computer keyboard
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Fan noise, Turning on the laptop, shutting
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Signal read information, Computer interface
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Opens, closes the CD / DVD tray, disc read
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The USB flash drive is inserted, removed
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Turn on, turn off the old computer
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Old computer keyboard
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Computer mouse click
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Turn off the old monitor, Turn on
★★★★★