Computer interface, signals:
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Modem connection, signal, interference
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CD / DVD drive, disc read
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Communication room, computer noise
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Fan noise, shutting, Turning on the computer
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Signals, Computer interface
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Manual copy machine
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Turning on the laptop, shutting, fan noise
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Photocopy (photocopy)
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Old computer keyboard
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Turn off the old computer, Turn on
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Insert the disk into the drive, read the
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Environmental sounds, typewriter, Office work
★★★★★