MacBook - technical definition

A family of laptop computers from Apple. Introduced in 2006, the MacBook Pro was the first model introduced in the line and the first Macintosh portable to use Intel CPUs (Core Duo chips running at 1.8 to 2.16 GHz).

In 2007, non-Pro MacBook models were introduced that were smaller and thinner and with less aggressive graphics than the Pro models. The MacBooks, with 13.3" screens rather than 15" or 17", weigh slightly less than the Pro.

MacBook Air
Apple introduced its thinnest MacBook in early 2008. With a full size keyboard and 13.3" wide screen, the MacBook Air weighs three pounds and is 3/4" thick. The Air's touchpad incorporates the multi-touch capability introduced on the iPhone, which enables functions such as selection, scrolling, zooming and rotating to be activated with one- and two-finger gestures on the pad. See Macintosh models, PowerBook, iBook and Core Duo.