- published: 11 Jun 2016
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The MacBook Pro is a line of Macintosh portable computers introduced in January 2006 by Apple Inc. It replaced the PowerBook G4 and was the second model, after the iMac, to be announced in the Apple–Intel transition. The MacBook Pro is the high end of the MacBook family and is currently produced with 13-, 15- and 17-inch screens.
There have been two designs for the MacBook Pro, both using aluminum. The first was largely a carry-over from the PowerBook G4, but used the Intel Core processors instead of PowerPC G4 chips. A 15-inch model was released in January 2006, a 17-inch model in April, both of which received several updates and Core 2 Duo processors later in the year.
The second model, known as the "unibody" model, has a more tapered design and a casing made from a single block of aluminum. It debuted in October 2008 as the 15-inch MacBook Pro and the 13-inch aluminum unibody MacBook. The following January brought the design to the 17-inch model, along with the built-in battery that joined the rest of the MacBook Pro line in June. Subsequent updates brought upgraded Intel Core i5 and i7 processors and introduced Intel's Thunderbolt technology.