Android Architecture

Android operating system is a stack of software components which is roughly divided into five sections and four main layers as shown below in the architecture diagram.

Android Architecture

Linux kernel

At the bottom of the layers is Linux – Linux 2.6 with approximately 115 patches. This provides basic system functionality like process management, memory management, device management like camera, keypad, display etc. Also, the kernel handles all the things that Linux is really good at such as networking and a vast array of device drivers, which take the pain out of interfacing to peripheral hardware.

Continue reading

Android Environment Setup

You will be glad to know that you can start your Android application development on either of the following operating systems:

  • Microsoft Windows XP or later version.
  • Mac OS X 10.5.8 or later version with Intel chip.
  • Linux including GNU C Library 2.7 or later.

Second point is that all the required tools to develop Android applications are freely available and can be downloaded from the Web. Following is the list of software’s you will need before you start your Android application programming.

Continue reading