Communication room, computer noise:
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Turning on the computer, shutting, fan noise
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Insert the disk into the drive, read the
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Floppy disk reading
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Opening, closing the laptop cover
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Computer mouse click
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Matrix printer
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Computer mouse movement
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Old computer keyboard
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Turn on, turn off the old monitor
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Manual copy machine
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Alarm, Computer interface
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Write, room noise, read, Hard disk
★★★★★