Communication room, computer noise:
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Computer mouse movement
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Computer interface, alarm
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Manual copy machine
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Computer interface, signal read information
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Pressing a keypad, input error sound
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Laser printer
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Signals, Computer interface
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Insert the disk into the drive, read the
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Computer simulated laser
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Disc read, closes the CD / DVD tray, Opens
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Matrix printer
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Signal, Modem connection, interference
★★★★★