Android Architecture - An introduction

The Android overall architure is introduced on the Android source web site:

• Core architecture presentation
• Explore the Android OS stack

Android is made of :

• An Android Linux kernel at the lower level, with a generic kernel (see gki ) and vendor specific modules.
• A HAL (Hardware Abstraction Layer) implemented by hardware vendors
• The Android Runtime (ART) and Native libraries
• System services (System, Media)
• The Android OS Framework, exposing Android API to applications and System API only available for partners and OEMs.
• Android standard Applications