Repeatedly pressing a computer mouse:
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Removed, The USB flash drive is inserted
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Floppy disk reading
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Shutting, Turning on the computer, fan noise
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Computer interface, alarm
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Shutting, fan noise, Turning on the laptop
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Office work, general noise
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Signal, Modem connection, interference
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Turn on, turn off the old monitor
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Signals, Computer interface
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Manual copy machine
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Computer mouse movement
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Signal read information, Computer interface
★★★★★