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Introduction to Android

One of the most widely used mobile Operating System these days is ANDRIOD. It is a software bunch comprising not only Operating system but also middleware and key add-ons.

Android Inc was founded in Palo Alto on California, U.S by Andy Rubins, Rich Miner, Nick Sears & Chris White in 2003. Later android Inc was acquired by Google in 2005. After original, there have been number of updates in the original version.

  1. Android 1.1
  2. Android 1.6 (Donut)
  3. Android 2.2 (Froyo)
  4. Android 3.0 (Honeycumb)

Java applications are written in java programming language. It is available as open source for developers to developed application which can be further used for sitting in android marketing.
Hardware that supports android is mainly based on ARM architecture platform.

Applications :-

  1. Android application are composed of 1 or more application components (activities services, content providers and broad-cast receivers)
  2. Each component performs a different sole in the overall application behavior and each can be activated individually.
  3. The manifest file must declare all components in the application and should also declare all application requirements.
  4. Non-code application resources (images, strings, layout files etc) should include alternatives for different device configurations.