Matrix printer:
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Fan noise, Turning on the laptop, shutting
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Old computer keyboard
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Computer interface, signal read information
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Turn on, turn off the old computer
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Closing the laptop cover, Opening
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Closes the CD / DVD tray, Opens
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Bios, Sound signal of a bios computer
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Alarm, Computer interface
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Typewriter, environmental sounds, Office work
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Matrix printer
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Photocopy (photocopy)
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Read the, Insert the disk into the drive
★★★★★