User:Gurucool2020/Books/Mobile phone & Android(OS)

By : [ Gurudeo Cool,HETC BOYS HOSTEL,8981061495]

 * Mobile phone
 * Mobile phone
 * Mobile phone features
 * List of countries by number of mobile phones in use
 * List of best-selling mobile phones
 * List of mobile phone makers by country
 * Mobile operating system
 * Comparison of mobile operating systems
 * Feature phone
 * Smartphone
 * Windows Phone
 * Mobile banking
 * Mobile phone radiation and health
 * Mobile phone recycling
 * Mobile phone accessories


 * Android_OS
 * Android (operating system)
 * List of features in Android
 * Android version history
 * Android software development
 * Comparison of Java and Android API
 * Comparison of Android devices