Course Content

Course Content


The Android architecture has three main components:

  • The application component (the app) - is where user interface logic, the app's business logic, and the database are placed.
  • The client component (the device) - is where sensors, input methods and output methods are implemented.
  • The Hardware Abstraction Layer - is where hardware-specific implementations of platform services are placed.

Android applications are built using three components - Android framework, Android libraries and the Android runtime. The Android framework provides the base level functionalities like memory allocation, threading, etc. The libraries provide a layer of utility methods and classes to facilitate common tasks like networking. The runtime is responsible for converting Java bytecode into native machine code for the target device.

  • Linux kernel is an open-source operating system that is the core of an Android device. It provides a platform for developers to create apps and software for smartphones and tablets, and it also makes a platform for all kinds of customizations.
  • Linux kernel has advanced features and stability, which makes it ideal for use in Android devices. It's also simpler to use and is supported by big companies such as Google, Samsung and HTC.
  • Linux kernel helps in several ways: improve battery life and performance, reduce power consumption, increase device lifespan, lower software costs from the development process, etc.

  • The Linux kernel is an open-source operating system that is the most influential piece of software in the world. The Android operating system, which is built on top of the Linux kernel, has been criticized for not being as reliable and secure as it could be.
  • The Linux kernel has a reputation for reliability and security because it allows different architectures to work with each other quite well. As a result, the OS is able to tap into resources from one architecture while using architectural features from another architecture.

  • Kernel is a program that allows for operating system-level virtualization of computer hardware. It creates an abstraction layer, which allows multiple x86 or x86-64 based operating systems to share common hardware.
  • This article discusses the technical details of how a kernel works in general. We start with different ways to create a kernel and then discuss the key concepts used by them. Finally, we explore how different kernels work by comparing and contrasting Intel’s Hyper-V kernel, VMWare’s Virtual Machine Monitor (VMM), Microsoft Windows Enterprise Edition (PE) and others. Kernel is a program that allows for operating system-level virtualization of computer hardware.

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