Since the debut of the first model, the MacBook Air has always combined a robust and light precision aluminium unibody enclosure with high performance and user-friendliness. The new 13" MacBook Air optimises this performance-to-weight ratio. It is remarkably slim, and yet is very sturdy and robust ideal for working on the go. Like iPad, MacBook Air was designed from the ground up to use flash storage exclusively. This type of storage medium is up to 90 per cent smaller and lighter than a conventional notebook hard drive, making it possible to create a MacBook Air with an even more compact and thinner design. Alongside providing much faster data access and even more reliable operation, the use of flash storage technology is also space saving and thus leaves room for a bigger battery which, in the case of the 13" model, gives users up to 7 hours of battery life for uninterrupted work. The generously sized multi-touch track pad with glass surface is pleasing to the touch and incorporates another user-friendly design aspect of the MacBook Air. Following an approach of consistently reinterpreting the reduction to the essential, the MacBook Air establishes a new sense of lightness for mobile work with a notebook.