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     Android is an operating system based on the Linux kernel, and designed primarily for touchscreen mobile devices such as smartphones and tablet computers. Initially developed by Android, Inc., which Google backed financially and later bought in 2005,Android was unveiled in 2007 along with the founding of the Open Handset Alliance a consortium of hardware, software, and telecommunication companies devoted to advancing open standards for mobile devices.

     The first publicly available smartphone running Android, the HTC Dream, was released on October 22, 2008.
The user interface of Android is based on direct manipulation, using touch inputs that loosely correspond to real-world actions, like swiping, tapping, pinching, and reverse pinching to manipulate on-screen objects.

      Internal hardware such as accelerometers, gyroscopes, and proximity sensors is used by some applications to respond to additional user actions, for example adjusting the screen from portrait to landscape depending on how the device is oriented.

      Android allows users to customize their home screens with shortcuts to applications and widgets, which allow users to display live content, such as emails and weather information, directly on the home screen. Applications can further send notifications to the user to inform them of relevant information, such as new emails and text messages. Despite being primarily designed for phones and tablets, it also has been used in televisions, games consoles, digital cameras, and other electronics. Android's source code is released by Google under the Apache License 2.0, which allows everyone to freely modify and distribute Android under various names except by reusing the "Android" trademark; however, device manufacturers and wireless carriers have licensed the trademark from Google.

     Most Android devices ship with a combination of open source and proprietary software. Android is popular with technology companies which require a ready-made, low-cost and customizable operating system for high-tech devices. Android's open nature has encouraged a large community of developers and enthusiasts to use the open-source code as a foundation for community-driven projects, which add new features for advanced users or bring Android to devices which were officially released running other operating systems.

Course Duration: 6 Months


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