What is Android ?

Is Android an operating system ?

Is Android a programming language ?

" Android is a software stack for mobile devices that includes or combination of

                Applications + Framework + Libraries + DVM + LINUX Kernel. "

Android Features 

1. Application framework
   
   •  An application framework that allows you to build an application or customize an already developed application.
   • It gives you easy-to-use(easy-2-use)tools to edit your data and edit the scope of your data.
     
     
2. Dalvik virtual machine
   • The Dalvik virtual machine(DVM) is a register-based virtual machine, designed and written by Dan Bornstein with contributions from other Google engineers as part of the Android mobile phone platform.
   • The  Dalvik virtual machine (DVM) is a Register-Based virtual machine, which is designed by Dan Bornstein with other Google engineers as a part of the Android Platform.
      
3. Integrated browser
   
   • Android has integrated the WebKit for browser behavior.
   • WebKit is an open source web browser engine.
      
4. Optimized graphics
   • Custom 2D graphics library.
   • 3D graphics based on the OpenGL ES 1.0 specification (hardware acceleration optional)
      
5. SQLite
   • As it's name implies Lite database for small device like mobile phones and smart phones.
   • SQLite is a Relational Database Management System with small programming libraries.
        
6. Media support
   • Audio (.MP3, .AAC, .AMR)
   • Video (.MPEG4)                             // does not supports .AVI
   • Images(.JPG, .PNG, .GIF)
      
7. GSM Telephony
   • Hardware Dependent
      
8. Bluetooth, EDGE, 3G, and WiFi
   • Hardware Dependent
     
     
9. Camera, GPS, compass, and accelerometer
   • Hardware Dependent
      
10. Rich development environment
• Includes a device emulator
• Tools for debugging 
• Memory and performance profiling
• Plugin for the Eclipse IDE (Integrated Development Environment)

Related links :

• Which versions of android available in market.
• How install android in your PC or laptop in 5 step?
• How to create dynamic listview with images in android ?
• Android - IDE(AIDE) let you allow to develop android application without PC or eclipse.
• Android mobile hidden tricks and tips, android hidden codes