Dell is a Human company that specializes in computers. When the Atlantis expedition arrived at Atlantis, a number of Dell laptops were brought to allow the expedition to properly use and access the Ancient computers. (SGA: "Rising") As well, at times Dr. Elizabeth Weir is seen using a Dell Axim handheld (an x50 or x51, most likely an x51). Carter can be seen using a Dell XPS on numerous occasions in the later seasons.