Android being provided by Google is an open source system being customised before installation by smartphone vendors like Samsung, Huawei and many others.
Being a mobile computing platform, the smartphone heavily relies on its mobile operating system (OS). The OS is an essential part of a computing platform that manages computer hardware and software resources and is thus crucial for a smartphone allowing it to run third-part software. At time of writing Android was installed on nearly 82% of all sold smartphones and iOS on nearly 18%, leaving less than 1% for all other mobile operating systems. Android being provided by Google is an open source system being customised before installation by smartphone vendors like Samsung, Huawei and many others.