Later revisions added Intel Core 2 Duo processors and LED-backlit displays. The 15-inch model was introduced in January 2006 the 17-inch model in April. 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. It is currently sold with 13-inch, 14-inch, and 16-inch screens, all using variants of the Apple-designed M1 system on a chip. Introduced in January 2006, it is the higher-end model of the MacBook family, sitting above the consumer-focused MacBook Air. The MacBook Pro is a line of Macintosh notebook computers by by Apple Inc.