MacBook Air

The MacBook Air is a line of Apple ultraportable Macintosh notebook computers that introduced Apple's aluminum unibody enclosure.

The first MacBook Air was a 13.3" model, promoted as the 'World's Thinnest Notebook', that was introduced at the Macworld Conference & Expo on January 15, 2008.^[5] The original MacBook Air featured custom^[6] Intel Merom CPU plus Intel GMA graphics that was updated to faster non-custom PenrynCPU and Nvidia GeForce graphics in late 2008. In addition, the hard drive capacity was increased and the micro-DVI video port was replaced with a Mini DisplayPort.^[7][8] A mid-2009 refresh, introduced alongside the MacBook Pro family, featured a slightly higher-capacity battery, and a faster Penryn CPU option.^[9]

On October 20, 2010, Apple released a redesigned 13.3" model, with a new lighter enclosure, higher resolution screen, higher capacity battery and an SSDinstead of a hard drive. In addition, an 11.6" model was released for the first time, offering reduced cost, weight, battery life, and performance relative to the 13.3" model, but better performance than typical netbooks.^{[10][11][12][13][14]}