Computer interface, signal read information:
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Read the, Insert the disk into the drive
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Modem connection, signal, interference
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Computer mouse click
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General noise, Office work
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Closing the laptop cover, Opening
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Computer interface, signals
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Pressing a keypad, input error sound
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Computer interface, signal read information
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Computer keyboard
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Manual copy machine
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Fan noise, Turning on the laptop, shutting
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Franking machine
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