MacBook Air is ultrathin, ultraportable, and ultra unlike anything else. But you don't lose inches and pounds overnight. It's the result of rethinking conventions. Of multiple wireless innovations. And of breakthrough design. With MacBook Air, mobile computing suddenly has a new standard.MacBook Air is nearly as thin as your index finger. Practically every detail that could be streamlined has been. Yet it still has a 13.3-inch widescreen LED display, full-size keyboard, and large multi-touch trackpad. It's incomparably portable without the usual ultraportable screen and keyboard compromises.The incredible thinness of MacBook Air is the result of numerous size- and weight-shaving innovations. From a slimmer hard drive to strategically hidden I/O ports to a lower-profile battery, everything has been considered and reconsidered with thinness in mind.MacBook Air performance is as impressive as its form, thanks to its Intel Core 2 Duo processor. This chip was custom-built to fit within the compact dimensions of MacBook Air