The document outlines the history and development of the Android operating system from its first internal release in November 2007 to Android 7.0 released on August 22, 2016. It highlights key features, updates, and names associated with each version, including significant releases like Android 1.0, which was the first commercial version, and the introduction of features like voice actions and multi-window support. Each version is indexed with its respective API levels, release dates, and notable capabilities.
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