The MacBook Air is a line of ultraportable Macintosh notebook computers created by Apple Inc. The Air was designed to balance both performance and portability.

It has a full-sized keyboard design and a machined aluminium casing with extremely low weight and thickness.

Steve Jobs introduced the first MacBook Air during a speech at his keynote at the 2008 Macworld Conference & Expo on January 15, 2008. The first-generation MacBook Air was a 13.3″-only model, initially promoted as the world’s thinnest notebook.

The MacBook Air is designed for thinness; it is also lighter than most competing models.

Steve Jobs introduced the first MacBook Air during a speech at his keynote at the 2008 Macworld Conference & Expo on January 15, 2008. The first-generation MacBook Air was a 13.3″-only model, initially promoted as the world’s thinnest notebook. It featured a custom Intel Merom CPU and Intel GMA graphics.

The CPU

In late 2008, the CPU was updated to a faster, non-custom Penryn CPU and integrated Nvidia GeForce graphics while the hard drive capacity was increased and the micro-DVI video port was replaced by the Mini DisplayPort. A mid-2009 refresh, introduced alongside the MacBook Pro family, featured a slightly higher-capacity battery, and a faster Penryn CPU.

Thinner and Thinner

On October 20, 2010, Apple released a redesigned 13.3″ model, with improved enclosure, screen resolution, battery, and flash storage instead of a hard drive. In addition, a new 11.6″ model was introduced, offering reduced cost, weight, battery life, and performance relative to the 13.3″ model, but better performance than typical netbooks of the time.