Since the release of Snow Leopard, the trackpad has also supported handwriting recognition of Chinese characters.

It also featured an anti-glare LED backlit display, a full-size keyboard, and a large trackpad that responded to multi-touch gestures such as pinching, swiping, and rotating. It featured a custom Intel Merom CPU and Intel GMA GPU which were 40% as big as the standard chip package. The original MacBook Air was a 13.3' model, initially promoted as the world's thinnest notebook at 1.9 cm (a previous record holder, 2005's Toshiba Portege R200, was 1.98 cm high). Steve Jobs introduced the MacBook Air during Apple's keynote address at the 2008 Macworld conference on January 15, 2008. The Intel-based MacBook Air was discontinued in November 2020 following the release of the first MacBook Air with Apple silicon based on the Apple M1 processor. The Retina MacBook Air was released in October 2018, with reduced dimensions, a Retina display, and combination USB-C/ Thunderbolt 3 ports for data and power. Later revisions added Intel Core i5 or i7 processors and Thunderbolt. Apple released a redesigned MacBook Air in October 2010, with a redesigned tapered chassis, standard solid-state storage, and added a smaller 11.6-inch version. The MacBook Air was introduced in January 2008 with a 13.3-inch screen, and was promoted as the world's thinnest notebook, opening a laptop category known as the ultrabook family. Since then, the original MacBook's discontinuation in 2011, and lowered prices on subsequent iterations, made the Air Apple's entry-level notebook. The Air was originally positioned above the previous MacBook line as a premium ultraportable. The Intel-based MacBook Air is a discontinued line of notebook computers developed and manufactured by Apple Inc. March 18, 2020 2 years ago ( ) (last model).January 29, 2008 15 years ago ( ) (first model).

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