Virtual Memory and Mass Storage in Operating Systems
The free online course on the components of virtual memory and the functions of mass storage in operating systems.Publisher: NPTEL
CertificationView course modules
This free online course on virtual memory and mass storage in operating systems will begin by introducing you to the background of virtual memory as well as the need for virtual address space in operating systems. You will learn about the function of demand paging, the different steps to follow in handling demand paging, and the different activities that demand paging performs in an operating system.
Then, this course will also introduce you to how page replacement occurs in a virtual environment. You will learn about the different schemes of page buffering algorithms along with the application of page buffering algorithms to page replacement. Furthermore, this course will teach you about the different types of mass storage that are found in operating systems as well as the functions of the disk scheduling operating system.
Finally, this course will introduce you to the concept of RAID structure along with the levels of RAID structure in operating systems. This course will then improve your knowledge of the various operations that can be carried out in a directory and how to organize a directory in operating systems. Begin this course and improve your knowledge of the functions of demand paging as well as mass storage in operating systems.Start Course Now
Virtual Memory and Demand Paging
Virtual Memory and Demand Paging - Learning Outcomes
Background and Objectives of Virtual Memory
Page Fault and Demand Paging
Stages and Performance of Demand Paging
Least Recently Used (LRU) Algorithm
Why Demand Paging Works and Thrashing
Improving Page Fault Rate
Virtual Memory and Demand Paging - Lesson Summary
Mass Storage and File Management in Operating System
Mass Storage and File Management in Operating System - Learning Outcomes
File System and Secondary Storage
Concept of Disk Scheduling
RAID Structure and File Operations
Operations Performed on Directory
Mass Storage and File Management in Operating System - Lesson Summary
Having completed this course, you should be able to:
- Discuss the background and objectives of virtual memory.
- Explain the stages of demand paging and the performance of demand paging.
- Discuss page replacement and page replacement policies.
- Explain the least recently used and page buffer algorithms.
- Discuss why demand paging works and the effect of thrashing.
- Discuss how to improve the page fault rate.
- Discuss the concept of mass storage in an operating system.
- Explain secondary storage in an operating system.
- Discuss the RAID structure and the RAID level.
- Explain the concept of disk scheduling.
- Identify the various operations performed on the directory.
- Explain the scan algorithm in disk scheduling.
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