Turning on the laptop, fan noise, shutting down:
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Turn off the old computer, Turn on
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Manual copy machine
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Computer keyboard
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Closes the CD / DVD tray, Opens
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Input error sound, Pressing a keypad
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Alarm, Computer interface
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Removed, The USB flash drive is inserted
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Laser printer
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Photocopy (photocopy)
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Bios, Sound signal of a bios computer
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Shutting, fan noise, Turning on the computer
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Jet printer
★★★★★