20 lines
1.3 KiB
Markdown
20 lines
1.3 KiB
Markdown
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---
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website: https://www.android.com
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obj: os
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---
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# Android
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Android is a mobile operating system developed by Google. It is based on the [Linux](../linux/Linux.md) kernel and is designed primarily for touchscreen devices such as smartphones and tablets. [GrapheneOS](GrapheneOS.md) is a custom Android ROM focused on Security.
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## Architecture and Components:
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### 1. **Linux Kernel:**
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- Android's foundation lies in the [Linux](../linux/Linux.md) kernel, which provides a secure and reliable core for the operating system.
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### 2. **Android Runtime (ART):**
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- Android utilizes the ART runtime to execute applications, offering improved performance and responsiveness compared to its predecessor, Dalvik.
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### 3. **Application Framework:**
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- Developers leverage the Android application framework, a set of APIs that includes activities, services, content providers, and broadcast receivers, to build diverse and interactive applications.
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### 4. **Libraries:**
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- Android includes various libraries for tasks such as graphics rendering, database access, and network communication, simplifying the development process and enhancing application capabilities.
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### 5. **Application Layer:**
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- The application layer is where users interact with installed applications, spanning a wide range of categories from productivity to entertainment.
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