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  • 1.  Introduction Platform Security Network Connectivity Development Requirements Comparison with other OS History Versions Of ANDROID
  • 2. Android is a Linux-based operating systemdesigned primarily for touchscreen mobiledevices such as smartphones and tabletcomputers.Developed by Google and later the OpenHandset Alliance (OHA)The developers write managed code in a Java-like language that utilizes Google-developedJava libraries but it does not support programs innative code.
  • 3. Android was originated by a group of companies known as theOpen Handset Alliance, led by Google. Today, many companies --both original members of the OHA and others -- have investedheavily in Android, typically in the form of allocating significantengineering resources to improve Android and bring Androiddevices to Market
  • 4. •Android uses Linux for its device drivers, memorymanagement, process management, and networking.•The next level up contains the Android native libraries. Theyare all written in C/C++ internally, but you’ll be calling themthrough Java interfaces. In this layer you can find theSurface Manager, 2D and 3D graphics, Media codecs, theSQL database (SQLite), and a native web browser engine(WebKit).•Dalvik Virtual Machine. Dalvik runs dex files, which arecoverted at compile time from standard class and jar files.
  • 5. Android is a multi-process system.Most security between applications and the systemis enforced at the process level through standardLinux facilities. Additional finer-grained security features areprovided.SECURITY
  • 6. AndroidApplication‘A’AndroidApplication‘B’AndroidApplication‘C’SECURITYLINUX 2.6 OPERATING SYSTEMMEMORYMANAGEMENTPROCESSMANAGEMENTNETWORKSTACKI/O DISPLAY,KEYPAD,TOUCH-SCREENMEMORYMANAGEMENTLINUX USER A LINUX USER B LINUX USER C
  • 7. It supports wireless communications using :- 3G Networks 4G Networks 802.11 Wi-Fi Networks Bluetooth Connectivity
  • 8.  Java Android SDK Eclipse IDE (Optional) Knowledge of XML
  • 9. SalesAndroid osWindows phoneiOSSymbian OsBlackberry osOthers
  • 10. AndroidiOs0500001000001500002000002500003000003500002009 2010 2011 2012AndroidiOs
  • 11.  Android Beta First Version of Android. The focus of Android beta istesting incorporating usability. Android beta will generally havemany more problems on speedand performance.
  • 12.  Android Astro 1.0 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 webbrowser is not present.
  • 13.  Android Cupcake 1.5 Released on April 30, 2009. Added auto-rotation option. Copy and Paste feature added in theweb browser. Increased speed and performancebut not upto required level.
  • 14.  Android Donut 1.6 Released on September 15, 2009. Voice search and Search box wereadded. Faster OS boot times and fast webbrowsing experience. Typing is quite slower.
  • 15.  Android Froyo 2.2 Released on May 20, 2010. Support for Adobe Flash 10.1 Improved Application launcherwith better browser No internet calling.
  • 16.  Android Gingerbread 2.3 Released on December 6, 2010. Updated User Interface withhigh efficiency and speed Internet calling One touch word selection andcopy/paste. New keyboard for faster word input. More successful version of Androidthan previous versions. Not supports multi-core processors.
  • 17.  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 onlyavailable for tablets.
  • 18.  Android IceCreamSandwich(ICS) 4.0 Released on November 14, 2011. Virtual button in the UI. A new typeface family for theUI, Roboto. Ability to shut down apps that areusing data in the background.
  • 19.  Android JellyBean 4.1 Released on June 27, 2012. Latest version of Android. Smoother user interface.
  • 20. Source code available to everyoneUses more amount of batteryContinuously need to connected with theinternet