Computer mouse movement:
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Read, write, room noise, Hard disk
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Interference, signal, Modem connection
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Repeatedly pressing a computer mouse
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Computer keyboard
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Turn on, turn off the old monitor
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Computer interface, signal read information
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Alarm, Computer interface
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Office work, environmental sounds, typewriter
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Fan noise, shutting, Turning on the computer
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Manual copy machine
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Turn off the hard drive, Turn on
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Closes the CD / DVD tray, Opens, disc read
★★★★★