Photocopy (photocopy):
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Removed, The USB flash drive is inserted
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Turning on the laptop, fan noise, shutting
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Communication room, computer noise
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Bios, Sound signal of a bios computer
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Turn on, turn off the old monitor
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Franking machine
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Double click computer mouse
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Input error sound, Pressing a keypad
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Turn off the old computer, Turn on
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Closes the CD / DVD tray, Opens
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Interference, signal, Modem connection
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Repeatedly pressing a computer mouse
★★★★★