Matrix printer:
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Computer mouse movement
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Computer simulated laser
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Interference, Modem connection, signal
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Input error sound, Pressing a keypad
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Closes the CD / DVD tray, Opens, disc read
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Disc read, CD / DVD drive
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Turn on, turn off the hard drive
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Insert the disk into the drive, read the
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Computer interface, alarm
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Fan noise, shutting, Turning on the computer
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Office work, general noise
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Computer interface, signal read information
★★★★★