Double click computer mouse:
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Manual copy machine
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Turn off the old monitor, Turn on
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Photocopy (photocopy)
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Fan noise, shutting, Turning on the computer
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Opening, closing the laptop cover
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Disc read, closes the CD / DVD tray, Opens
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Hard disk, room noise, write, read
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Computer simulated laser
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Bios, Sound signal of a bios computer
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Computer noise, Communication room
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Insert the disk into the drive, read the
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The USB flash drive is inserted, removed
★★★★★