Turning on the laptop, fan noise, shutting down:
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Franking machine
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Computer noise, Communication room
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Closes the CD / DVD tray, Opens, disc read
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Computer mouse movement
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Input error sound, Pressing a keypad
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Floppy disk reading
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Turning on the laptop, shutting, fan noise
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The USB flash drive is inserted, removed
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Disc read, CD / DVD drive
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Turn off the hard drive, Turn on
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Manual copy machine
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Fan noise, shutting, Turning on the computer
★★★★★