Computer Organisation and Architecture - Vol 3 | 2. Basics of Memory and Cache Part 2 by Abraham | Learn Smarter
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2. Basics of Memory and Cache Part 2

Memory technologies vary significantly in access times and costs. The hierarchy of memory, from registers to magnetic disks, balances speed and cost, optimizing performance while managing budget constraints. Understanding locality of reference is key to designing effective memory hierarchies, allowing for efficient data retrieval and storage.

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Sections

  • 2.1

    Computer Organization And Architecture: A Pedagogical Aspect

    This section discusses various memory technologies used in computers, focusing on their access times, costs, and the concept of memory hierarchy.

  • 2.2

    Basics Of Memory And Cache Part 2

    This section discusses the hierarchy of memory, the characteristics of different types of memory (SRAM, DRAM, magnetic disks), and introduces the concept of cache memory, its functioning, and significance.

  • 2.3

    Memory Technologies

    This section discusses various memory technologies, their access speeds, costs, and the design trade-offs that characterize modern computer memory hierarchies.

  • 2.3.1

    Srams

    This section explores SRAM technology, comparing it to DRAM and magnetic disks in terms of speed, cost, and efficiency.

  • 2.3.2

    Drams

    This section discusses DRAM technology, its performance characteristics in comparison to other memory types, and the importance of memory hierarchy in computing.

  • 2.3.3

    Magnetic Disks

    This section discusses the characteristics of magnetic disks, including their cost-effectiveness, speed limitations compared to other memory types, and their role in a system's memory hierarchy.

  • 2.4

    Design Trade-Offs In Memory Hierarchy

    This section discusses the different memory technologies and their trade-offs in terms of speed, cost, and capacity within a memory hierarchy.

  • 2.4.1

    Memory Hierarchy Structure

    The memory hierarchy structure outlines how different types of memory are organized based on speed, cost, and size, emphasizing the importance of locality of reference for efficient data access.

  • 2.5

    Principle Of Locality Of Reference

    The Principle of Locality of Reference explains how processors access memory in clusters, leading to efficient use of different memory hierarchies.

  • 2.5.1

    Temporal Locality

    This section introduces the concept of temporal locality in computer memory, explaining its role in optimizing access times within memory hierarchies.

  • 2.5.2

    Spatial Locality

    Spatial locality refers to the tendency of programs to access data elements that are close to each other in memory.

  • 2.6

    Cache Memory

    This section discusses cache memory, its role in the memory hierarchy, and the principles of locality of reference that optimize data retrieval.

  • 2.6.1

    Cache Hit And Miss

    This section explores the concepts of cache hit and miss, highlighting the importance of cache memory in computer architecture and how it optimizes data access.

  • 2.6.2

    Cache Block Management

    This section discusses cache memory, its structure, management techniques, and the importance of locality of reference in optimizing CPU memory access.

  • 2.6.3

    Multiple Levels Of Cache

    This section explains the hierarchical organization of memory within computer architecture, focusing on various cache levels and their functionalities.

  • 2.6.4

    Cache Access Mechanism

    This section discusses the cache access mechanism, emphasizing the importance of cache memory in the hierarchy of computer memory systems.

  • 2.6.5

    Direct Mapping Of Cache

    This section discusses the concept of direct mapping in cache memory, explaining how main memory blocks are assigned to cache lines for efficient data access.

  • 2.6.6

    Memory Address Structure For Cache

    This section discusses the memory address structure for cache, emphasizing the hierarchy and mapping of different memory types to effectively improve performance.

References

25 part a.pdf

Class Notes

Memorization

What we have learnt

  • Different memory types such...
  • The memory hierarchy is des...
  • Cache memory serves as an i...

Final Test

Revision Tests