# Directory Structure

The AOSP project structure is divided into the following main directories:

* **bionic:** This directory contains the Bionic C library, which is the standard C library for Android.
* **bootable:** This directory contains the boot and startup related code for Android.
* **build:** This directory contains the build system for Android, which is responsible for compiling and building the Android platform.
* **cts:** This directory contains the Compatibility Test Suite (CTS), which is a set of tests that are used to ensure that Android devices comply with the Android Compatibility Definition Document (CDD).
* **dalvik:** This directory contains the Dalvik Virtual Machine (DVM), which is the runtime environment for Android applications.
* **development:** This directory contains projects related to development, such as the SDK and NDK tools.
* **device:** This directory contains product specific code for different devices.
* **external:** This directory contains source code for all external open source projects that are used by Android.
* **frameworks:** This directory contains the core framework code for Android, such as the Activity Manager, the Package Manager, and the Content Provider.
* **libs:** This directory contains shared libraries that are used by the Android platform.
* **packages:** This directory contains the pre-installed applications that are included with the Android platform.
* **system:** This directory contains the core system files for Android, such as the kernel, the initramfs, and the root filesystem.
* **tests:** This directory contains the unit and integration tests for the Android platform.
* **out:** This directory will contain your generated/build modules and files.