(Android is an operating system based on the Linux open kernel, which was released by Google on November 5, 2007. Android was initially developed by an enterprise formerly called Android, and Google bought Android in 2005 After Inc, it continued to develop and operate the Android system. It adopted the software stack architecture, which is mainly divided into three parts. The underlying Linux kernel only provides basic functions. Other software is developed by enterprises themselves, and some programs are written in Java.)