Turning on the laptop, fan noise, shutting down:
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Communication room, computer noise
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Turn on, turn off the old monitor
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The USB flash drive is inserted, removed
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General noise, Office work
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Computer mouse movement
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Computer keyboard
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Write, room noise, read, Hard disk
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Computer simulated laser
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Turn on, turn off the hard drive
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Closes the CD / DVD tray, Opens
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Double click computer mouse
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Signal read information, Computer interface
★★★★★