MacBook

The MacBook is a line of Mac laptops sold by Apple between May 2006 and February 2012. It replaced the iBook series of notebooks as a part of Apple's transition from PowerPC to Intel processors. Positioned as the low end of the MacBook family, below the premium ultra-portable MacBook Air and the performance-oriented MacBook Pro, the MacBook was aimed at the consumer and education markets. It became the best-selling Mac in Apple's history. For five months in 2008, it was the best-selling laptop of any brand in US retail stores.

There have been three separate designs of the original MacBook. The original design used a combination of polycarbonate and fiberglass casing which was modeled after the iBook G4. The second design, introduced in October 2008 alongside the 15 in (380 mm) MacBook Pro, shared the latter's unibody aluminium casing, but lacked a FireWire port. A third design, introduced in late 2009, retained a similar unibody construction but lacked a FireWire port and changed back to white polycarbonate.