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Android Architecture
The document discusses the architecture of the Android operating system. It describes Android running on a Linux kernel which provides core system services like memory management and security. It then explains the different layers that make up the Android runtime, including the bootloader, init process, zygote process, Dalvik virtual machine and system server. Finally, it notes that system services bind to the service manager to complete the startup of the Android system.
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Android Architecture
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- 2. GOALS ▸What is Android? ▸Android Architecture Layers ▸Runtime Walkthrough
- 3. WHAT IS ANDROID? LINUX KERNEL ▸ Memory and process management ▸ Permission-based security model ▸ Driver model ▸ Open-source
- 5. WHAT IS ANDROID? LINUX KERNEL ▸ Memory and process management ▸ Permission-based security model ▸ Driver model ▸ Open-source
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- 21. RUNTIME WALKTHROUGH ▸ Bootloader ▸ LinuxKernel ▸ init
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- 23. RUNTIME WALKTHROUGH ▸ Bootloader ▸ LinuxKernel ▸ init ▸ daemons
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- 26. RUNTIME WALKTHROUGH ▸ Bootloader ▸ LinuxKernel ▸ init ▸ daemons ▸ Zygote
- 27. RUNTIME WALKTHROUGH ▸ Bootloader ▸ LinuxKernel ▸ init ▸ daemons ▸ Zygote ▸ Runtime (Service Managers)
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- 34. RUNTIME WALKTHROUGH ▸ Bootloader ▸ LinuxKernel ▸ init ▸ daemons ▸ Zygote ▸ Runtime (Service Managers) ▸ Dalvik VM ▸ System Server
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- 38. RUNTIME WALKTHROUGH ▸ Bootloader ▸ LinuxKernel ▸ init ▸ daemons ▸ Zygote ▸ Runtime (Service Manager) ▸ Dalvik VM ▸ System Server ▸ System Services (bind to Service Manager)
- 39. RUNTIME WALKTHROUGH ▸ Bootloader ▸ LinuxKernel ▸ init ▸ daemons ▸ Zygote ▸ Runtime (Service Manager) ▸ Dalvik VM ▸ System Server ▸ System Services (bind to Service Manager)
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- 45. AND WE AREREADY