Originally unveiled in 2007, Android, an operating system for touchscreen devices, has been the leading platform for smartphones since 2010. Whether you have an Android phone or tablet or are thinking of getting one, BarCharts' Android OS - Phone & Tablet guide will give you a crash course in the most important features of Ice Cream Sandwich (4.0.x) and Jelly Bean (4.1.x), the newest versions of the Android operating system. Features covered include the Google Play store, the gateway to apps for Android devices, antivirus applications, and printing from your device.