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Android

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ANDROID OPERATION SYSTEM
INTRODUCTION
Android is a mobile operating system that is currently developed by Google, it is based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android’s user-interface is mainly based on direct manipulation, using touch gestures that loosely corresponds to real-world actions, such as swiping, tapping and pinching to manipulate on-screen objects along with a virtual keyboard for text input.
In addition to touchscreen devices Google has also developed android for other platforms such Android TV for Television, Android Auto for Cars and Android Wear for wristwatches. Each of these platform have special interface to sooth the platform. Variant of Android are also used on Notebooks, game console, digital camera and other electronics.
As smartphones and tablets become more popular, the operating systems for those devices become more important. Android is such an operating system for low powered devices that run on battery and contain hardware like Global Positioning System (GPS) receivers, cameras, light and orientation sensors, WiFi and UMTS (3G telephony) connectivity and a touch screen. Like all operating systems, Android enables applications to make use of the hardware features through abstraction and provide a defined environment for applications. Unlike on other mobile operating systems like Apple’s iOS, Palm’s web OS or Symbian, Android applications are written in Java and run in virtual machines. For this purpose Android features the Dalvik virtual machine which executes its own byte code. Dalvik is a core component, as all Android user applications and the application framework are written in Java and executed by Dalvik. Like on other platforms, applications for Android can be obtained from a central place called Android Market. The platform was created by Android Inc.

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