The MacBook Pro is a line of Macintosh notebook computers by Apple Inc. Introduced in January 2006, it is the higher-end model of the MacBook family, sitting above the consumer-focused MacBook Air. It is currently sold with 13-inch, 14-inch, and 16-inch screens, all using variants of the Apple-designed M1 and M2 system on a chip. The first-generation MacBook Pro used the design of the PowerBook G4, but replaced the PowerPC G4 chips with Intel Core processors, added a webcam, and introduced the MagSafe power connector. The 15-inch model was introduced in January 2006; the 17-inch model in April. Later revisions added Intel Core 2 Duo processors and LED-backlit displays. The second-generation model debuted in October 2008 in 13- and 15-inch variants, with a 17-inch variant added in January 2009.