Computer Organisation and Architecture - Vol 3 | 9. Basics of Virtual Memory and Address Translation by Abraham | Learn Smarter
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9. Basics of Virtual Memory and Address Translation

Virtual memory is a technique that allows multiple processes to concurrently reside in main memory, providing the illusion of a large addressable space even with limited physical memory. It enables efficient management by mapping virtual addresses to physical addresses, enforcing protection between programs and the kernel. This translation process supports operations like page sharing and eliminates the need for contiguous memory allocation, thus simplifying the memory management processes.

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Sections

  • 9.1

    Basics Of Virtual Memory And Address Translation

    This section covers the fundamental concepts of virtual memory and address translation, explaining how they allow multiple processes to coexist in memory efficiently and securely.

    Learning Practice

  • 9.1.1

    Introduction To Virtual Memory

    Virtual memory allows multiple programs to share the main memory efficiently, acting as a cache for secondary storage and enabling larger addressable spaces than physical memory.

    Learning Practice

  • 9.1.2

    Mapping Virtual Addresses To Physical Addresses

    This section explores the concepts of virtual memory and the mapping of virtual addresses to physical addresses.

    Learning Practice

  • 9.1.3

    Protection Of Program's Physical Address Space

    This section covers how virtual memory systems maintain process isolation and protection of physical address spaces in multi-process environments.

    Learning Practice

  • 9.1.4

    Translation Process And Program Isolation

    This section discusses the role of the translation process in managing virtual memory and ensuring program isolation and protection in computer architecture.

    Learning Practice

  • 9.1.5

    Users' Programs And Operating System Protection

    This section covers the concept of virtual memory and how it enables operating systems to allow multiple processes to coexist in main memory while ensuring protection and efficient mapping between virtual and physical memory addresses.

    Learning Practice

  • 9.1.6

    Page Faults And Memory Management

    This section details the concept of virtual memory and page faults, illustrating how virtual addresses are mapped to physical addresses in memory management systems.

    Learning Practice

  • 9.1.7

    Shared Libraries And Dynamic Binding

    This section explores the concept of shared libraries and dynamic binding in operating systems, explaining how memory management enables efficient resource sharing between multiple processes.

    Learning Practice

  • 9.1.8

    Relocation And Page Mapping

    This section discusses virtual memory and the mapping of virtual addresses to physical addresses, highlighting the interaction between the CPU and the operating system in memory management.

    Learning Practice

  • 9.1.9

    Virtual To Physical Address Translation

    This section covers the process of translating virtual addresses to physical addresses in a computer system, emphasizing virtual memory, protection, and shared access.

    Learning Practice

References

29 part a.pdf

Class Notes

Memorization

What we have learnt

  • Virtual memory provides a l...
  • The mapping of virtual addr...
  • Efficiency in memory use is...

Final Test

Revision Tests