The MacBook Pro is a line of Macintosh portable computers introduced in January 2006 by Apple Inc., and now in its third generation. Replacing the PowerBook G4, the MacBook Pro was the second model, after the iMac, to be announced in the Apple–Intel transition. It is also the high-end model of the MacBook family and is currently produced with 13- and 15-inch screens, although a 17-inch version has been offered previously.
The first generation MacBook Pro appeared externally similar to the PowerBook G4, but used the Intel Core processors instead ofPowerPC G4 chips. The 15-inch model was released in January 2006, a 17-inch model in April, both of which received several updates andCore 2 Duo processors later in the year.