Draw and describe architecture of RTOS.
1 Answer
  • For simple applications, RTOS is usually a kernel but as complexity increases, various modules like networking protocol, debugging facilities, device I/Os are included in addition to the kernel.

  • The general architecture of RTOS is shown in the figure:

    enter image description here

  • An operating system generally consists of two ports: kernel space and user space.

  • RTOS kernel acts as an observation layer between the hardware and the applications.

  • Kernel is the smallest and central component of an operating system. Its services include managing memory and devices and to provide an interface for software applications to use the resources.

  • Six types of common services provided by the kernel are shown below in the figure:

    enter image description here

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