The USB flash drive is inserted, removed from the usb connector:
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Photocopy (photocopy)
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Turn on, turn off the hard drive
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Closes the CD / DVD tray, Opens, disc read
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Computer mouse movement
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The USB flash drive is inserted, removed
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Turning on the laptop, fan noise, shutting
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CD / DVD drive, disc read
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Office work, environmental sounds, typewriter
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Signal read information, Computer interface
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Repeatedly pressing a computer mouse
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Opening, closing the laptop cover
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Fan noise, shutting, Turning on the computer
★★★★★