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Basic Information About Android

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  2. 2. TOPICS  Introduction  History  Features  Android Devices  Android Versions  Android Architecture
  3. 3. INTRODUCTION  Android is a software stack for mobile devices that includes an operating system, middleware and key applications.  Based on the Linux kernel;  Developed by Google and later the Open Handset Alliance(OHA)  Allows writing code in the Java and C/C++ language;  Simply: Android is a combination of three components:  A free, open-source operating system for mobile devices  An open-source development platform for creating mobile applications  Devices, particularly mobile phones, that run the Android operating system and the applications
  4. 4. HISTORY  Initially, Andy Rubin founded Android Incorporation in Palo Alto, California, United States in October, 2003.  In 17th August 2005, Google acquired android Incorporation. Since then, it is in the subsidiary of Google Incorporation.  The key employees of Android Incorporation are Andy Rubin, Rich Miner, Chris White and Nick Sears.
  5. 5. OPEN HANDSET ALLIANCE(OHA)  It's a consortium of 84 companies such as Google, Samsung, AKM, Synaptic, KDDI, Garmin, Teleca, EBay, Intel etc.  It was established on 5th November, 2007, led by Google. It is committed to advance open standards, provide services and deploy handsets using the Android Platform.  This group of companies are allowed to use source code of Android and develop applications.  Reason for Nokia not to develop Android Mobiles is Nokia is not part of OHA.
  7. 7. FEATURES  It is open-source.  Anyone can customize the Android Platform.  Android is a multi-process system, in which each application (and parts of the system) runs in its own process.  Android supports wireless communication using:-  3G Networks  4G Networks  802.11 Wi-Fi Networks  Bluetooth Connectivity  User gets millions of applications that user can not get in any other mobile operating system.  Android supports advanced audio/video/still media formats such as MPEG-4, MP3, MP4, and AAC, AMR, JPEG, PNG, GIF.  Developing an android application is not tough using SDK(standard development kit) and java emulator we can easily develop applications that we want.
  8. 8. TYPES OF ANDROID DEVICES Galaxy Note 3 Galaxy Tablet
  9. 9. Android-Powered Microwave Android-Powered Watch
  10. 10. Android-Powered Camera Android-Powered TV
  11. 11. Android-Powered Car Radio Android-Powered Washing Machine
  13. 13. BRIEF DESCRIPTION  Android Beta  First Version of Android.  The focus of Android beta is on testing incorporating usability.  Android beta will generally have many more problems on speed and performance.  Android Aestro and Blender  First full version of android.  Released on September 23, 2008.  Wi-Fi and Bluetooth support.  Quite slow in operating.  Copy and paste feature in the web browser is not present.
  14. 14.  Android Cupcake 1.5  Released on April 30, 2009.  Added auto-rotation option.  Copy and Paste feature added in the web browser.  Increased speed and performance but not up to required level  Android Donut 1.6  Released on September 15, 2009.  Voice search and Search box were added.  Faster OS boot times and fast web browsing experience.  Typing is quite slower.  Android Éclair 2.0/2.1  Released on October 26, 2009.  Bluetooth 2.1 support.  Improved typing speed on virtual keyboard, with smarter dictionary.  no Adobe flash media support.
  15. 15.  Android Froyo 2.2  Released on May 20, 2010.  Support for Adobe Flash 10.1  Improved Application launcher with better browser  No internet calling.  Android Gingerbread 2.3  Released on December 6, 2010.  Updated User Interface with high efficiency and speed  Internet calling  One touch word selection and copy/paste.  New keyboard for faster word input.  More successful version of Android than previous versions.  not supports multi-core processors.  Android Honeycomb 3.0  Released on February 22, 2011.  Support for multi-core processors  Ability to encrypt all user data.  This version of android is only available for tablets.
  16. 16.  Android IceCreamSandwich(ICS) 4.0  Released on November 14, 2011.  Virtual button in the UI.  A new typeface family for the UI, Roboto.  Ability to shut down apps that are using data in the background.  Android JellyBean 4.1  Released on June 27, 2012.  Restricted profiles  Smoother user interface.  Bluetooth smart ready  Multi language support
  17. 17. LATEST VERSION KIT-KAT  New version released on 31 October 2013 called Android 4.4 KitKat.  It was long-rumoured that the follow up to Jelly Bean would be “Key Lime Pie”, however in a deal with Nestle, Google named Android 4.4 after the Kitkat chocolate biscuit.
  18. 18. FEATURES  “OK Google”  You don’t need to touch the screen to get things done. When on your home screen* or in Google Now, just say “Ok Google” to launch voice search, send a text, get directions or even play a song  Full-screen immersion  Kitkat hides the status bar and menu bar when in full screen mode  Print wherever, whenever  Bluetooth MAP support  Android now supports the Message Access Profile (MAP) so Bluetooth-enabled cars can exchange messages with your devices.  Faster multitasking  The future is calling  Newly redesigned Quickoffice.
  20. 20. ARCHITECTURE PART 1/5 Android provides a set of core applications:  Email Client  SMS Program  Calendar  Maps  Browser  Contacts  Etc All applications are written using the Java language.
  21. 21. ARCHITECTURE PART 2/5  Enabling and simplifying the reuse of components  Developers have full access to the same framework APIs used by the core applications.  Users are allowed to replace components.
  22. 22. ARCHITECTURE PART 2/5 Features
  23. 23. ARCHITECTURE PART 3/5  Libc: c standard lib.  SSL: Secure Socket Layer  SGL: 2D image engine  OpenGL|ES: 3D image engine  Media Framework: Core part of Android multi-media  SQLite: Embedded database  WebKit: Kernel of web browser  FreeType: Bitmap and Vector  SufraceManager: Manage difference windows for different applications  Including a set of C/C++ libraries used by components of the Android system  Exposed to developers through the Android application framework
  24. 24. ARCHITECTURE PART 4/5 Core Libraries Providing most of the functionality available in the core libraries of the Java language APIs Data Structures Utilities File Access Network Access Graphics, etc.
  25. 25. ARCHITECTURE PART 4/5  Dalvik Virtual Machine  Providing environment on which every Android application runs  Each Android application runs in its own process, with its own instance of the Dalvik VM.  Dalvik has been written such that a device can run multiple VMs efficiently.  Register-based virtual machine  Executing the Dalvik Executable (.dex) format  .dex format is optimized for minimal memory footprint.  Compilation  Relying on the Linux Kernel for:  Threading  Low-level memory management
  26. 26. ARCHITECTURE PART 5/5  Relying on Linux Kernel 2.6 for core system services  Memory and Process Management  Network Stack  Driver Model  Security  Providing an abstraction layer between the H/W and the rest of the S/W stack
  27. 27. THANK YOU