iPad is a line of tablet computers designed, developed and marketed by Apple Inc., which run the iOS and iPadOS mobile operating systems. The first iPad was released on April 3, 2010; the most recent iPad models are the eighth-generation iPad, released on September 18, 2020; the fifth-generation iPad mini, released on March 18, 2019; the fourth-generation iPad Air, released on October 23, 2020; and the second-generation 11-inch (280 mm) and fourth-generation 12.9-inch (330 mm) iPad Pro, released on March 25, 2020.