Android is an operating system for mobile devices such as smart phones and tablet computers. It is developed by the Open Handset Alliance led by Google. Android is a mobile operating system that is based on a modified version of Linux. Google purchased the initial developer of the software, Android Inc., on August 17, 2005.
Android consists of a kernel based on the Linux kernel, with middleware, libraries and APIs written in C and application sof-tware running on an application framework which includes Java-compatible libraries based on Apache Harmony. Android uses the Dalvik virtual machine with just-in-time compilation to run Dalvik dex-code (Dalvik Executable), which is usually tr-anslated from Java byte code. Google wanted Android to be open and free; hence, most of the Android code was released under the open-source Apache License, which means that anyone who wants to use Android can do so by downloading the full Android source code.
When the iPhone was launched, many of these manufacturers had to scramble to find new ways of revitalizing their products. These manufacturers see Android as a solution – they will continue to design their own hardware and use Android as the operating system that powers it.
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