Android is an open-source operating system used for smartphones and tablets. It was developed by Android Inc which was founded in 2003. Some key events in Android's history include the release of the first commercial Android device, the HTC Dream, in 2008 and Samsung's Galaxy Tab tablet in 2010. Android uses the Linux kernel and runs apps in the Dalvik virtual machine. It has an application framework and core apps. Major Android versions include Cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwich, Jelly Bean, KitKat, Lollipop, Marshmallow, Nougat, Oreo and Pie. Features include a beautiful UI, connectivity, storage,