High Quality Content by WIKIPEDIA articles! The fourth generation iPad (marketed as iPad with Retina display, colloquially referred to as the iPad 4) is a tablet computer designed, developed, and marketed by Apple Inc. The fourth generation iPad features a Retina Display, the new Apple A6X chip, and the Lightning connector, which was introduced on September 12, 2012. It ships with iOS 6.0, which provides a platform for audio-visual media, including electronic books, periodicals, films, music, computer games, presentations and web content.