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This course, Operating Systems - Understanding Hardware and Software Interrupts will discuss interrupts in a computer system and how operating systems handle interrupts. The course starts off with introducing you to interrupts in an operating system, where you will learn about the different types of interrupts and how a system handles a hardware interrupt. You will be taught about a programmable interrupt controller and how it handles hardware interrupts.
You will also learn about the advanced programable interrupt controller, and how it is used for modern system as well as the steps involved in handling an interrupt. Then, you will learn about what the CPU and operating system do in each of the steps in handling an interrupt. The next topic introduced is software interrupts and how they are used for implementing system calls. You will learn about how system calls work and about some of the different types of system calls you can use as well as the parameters passed into a system call and where they come from.
You will be taught what a resource descriptor is used for in a system call, and about CPU context switching and when the occur. You will learn about the trap frame and what happens when a software interrupt occurs. Lastly, you will learn about context switch overheads and factors effecting context switching time. This course will be of great interest to computer science students and computer engineers, and anyone who wants to learn more about Interrupts in computer operating systems.
Prerequisites: The Learner will need to have completed the previous courses: Introduction to Operating Systems. Introduction to Memory Management. Introduction to Operating Systems Processes.Start Course Now
Having completed this course, you will be able to:
- Describe the three types of Interrupts in Operating system.
- List the steps in a hardware interrupt.
- Describe how a software interrupt happens.
- List factors that affect context switching.
- Describe how a CPU switches between processes.
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