Android system architecture
Last Updated on Monday, 17 January 2011 15:47
| Article Index |
|---|
| 1. Linux Kernel |
| 2. Native Libraries |
| 3. Android Runtime |
| 4. Application Framework |
| 5. Applications and Widgets |
| 6. Android system architecture |
1. Linux Kernel
Linux kernel provides an abstraction hardware layer for an Android. This allows an Android to be ported into variety of different devices. Furthermore the linux kernel is used for android's  memory management, process management, netwoking and other underlined operating systems services.
2. Native Libraries
These shared libraries are pre-installed on a android device by each vendor. They are written in C/C++ language and allow 3D and 2D graphics, window manager, all sorts audio video formats, Sqllite database and etc.
3. Android Runtime
This layer includes Dalvik Virtual machine code and core Java Libraries.
4. Application Framework
Android Application framework is a high-level layer to provide a developer with a space for a new Android applications development.
5. Applications and Widgets
This is the highest level of the Android system architecture. End user android applications and widgets layer.
6. Android system architecture
Figure 1.1 - Android system architecture
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