<Table> <Tr> <Td> </Td> <Td> This article contains content that is written like an advertisement . Please help improve it by removing promotional content and inappropriate external links, and by adding encyclopedic content written from a neutral point of view . (February 2018) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article contains content that is written like an advertisement . Please help improve it by removing promotional content and inappropriate external links, and by adding encyclopedic content written from a neutral point of view . (February 2018) (Learn how and when to remove this template message) </Td> </Tr> <P> The MacBook is an American line of notebook computers manufactured by Apple Inc. from May 2006 to February 2012, and relaunched in 2015 . It replaced the iBook series and 12 - inch PowerBook series of notebooks as a part of the Apple - Intel transition from PowerPC . Positioned as the low end of the MacBook family, below the premium ultra-portable MacBook Air and the powerful MacBook Pro, the MacBook was aimed at the consumer and education markets . It was the best - selling Macintosh ever . For five months in 2008, it was the best - selling laptop of any brand in US retail stores . Collectively, the MacBook brand is the "world's top - selling line of premium laptops ." </P> <P> There have been four separate designs of the MacBook . The original model used a combination of polycarbonate and fiberglass casing which was modeled after the iBook G4 . The second type was introduced in October 2008 alongside the 15 - inch MacBook Pro; the MacBook shared the more expensive laptop's unibody aluminium casing, but omitted FireWire . A third design, introduced in late 2009, had a polycarbonate unibody casing . </P>

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