Computer Organisation and Architecture - Vol 3 | 30. Storage Devices by Abraham | Learn Smarter
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30. Storage Devices

The chapter discusses the various types of storage devices essential for secondary memory in computer architecture, emphasizing the functionality and design issues associated with hard disks. It explains the importance of hard disk controllers and outlines the memory hierarchy, highlighting the differences in speed, capacity, and cost among primary and secondary memory types. Moreover, it provides insights into data organization and the read/write mechanisms of magnetic disks.

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Sections

  • 30.1

    Computer Organization And Architecture: A Pedagogical Aspect

    This section discusses the significance of storage devices in computer architecture, focusing on their types, design issues, and the critical role of the hard disk controller.

  • 30.1.1

    Storage Devices

    This section discusses various storage devices, particularly focused on hard disks, their mechanisms, design issues, and importance in the computer architecture.

  • 30.2

    Objectives For Storage Devices

    This section outlines the key objectives related to storage devices in computer architecture, focusing on their types, design issues, and the role of hard disk controllers.

  • 30.2.1

    Objective 1: Identify The Storage Devices For Secondary Memory

    This section introduces various secondary memory storage devices used in computer systems.

  • 30.2.2

    Objective 2: Discuss The Design Issues Of A Hard Disk

    This section discusses the fundamental design issues of hard disks, focusing on their read-write mechanisms, formatting, addressing schemes, and data formats.

  • 30.2.3

    Objective 3: Explain The Need Of Hard Disk Controller

    This section discusses the necessity of hard disk controllers in computer systems for effective data storage and retrieval.

  • 30.3

    Memory Hierarchy

    The memory hierarchy of a computer system organizes storage devices in levels, optimizing speed, capacity, and cost.

  • 30.3.1

    In Board Memory

    This section discusses the role of in-board memory within a computer system, particularly focusing on secondary storage devices like hard disks and their design and operational mechanisms.

  • 30.3.2

    Out Board Storage

    This section discusses secondary storage devices, specifically hard disks, their components, operations, and the need for controllers.

  • 30.3.3

    Online And Offline Storage

    This section discusses the distinctions between online and offline storage, along with examples and their significance in computer organization.

  • 30.4

    Types Of External Memory

    This section explores various types of external memory in computer architecture, focusing on storage devices and their functionalities.

  • 30.4.1

    Magnetic Disk

    This section discusses magnetic disks as a vital component of secondary storage devices, explaining their workings and importance in computer architecture.

  • 30.4.2

    Optical Storage

    This section discusses various types of optical storage devices, their working principles, and their role in the memory hierarchy of computer systems.

  • 30.4.3

    Magnetic Tape

    This section provides an overview of magnetic tape as a secondary storage device, focusing on its structure, functionality, and applications.

  • 30.5

    Working Principle Of Magnetic Disks

    This section explains the working principles of magnetic disks, including their structure, read/write mechanisms, and organizational data formatting.

  • 30.5.1

    Basic Structure And Operation Of Magnetic Disks

    This section introduces the basic structure and functionality of magnetic disks in computer storage systems.

  • 30.5.2

    Read And Write Operations

    This section discusses read and write operations in the context of hard disk storage, highlighting the importance of secondary memory in computer systems.

  • 30.6

    Data Organization And Formatting

    This section covers the organization and formatting of data on storage devices, focusing on the structure of magnetic disks and the principles of read/write mechanisms.

  • 30.6.1

    Tracks And Sectors

    This section discusses the organization of data on storage devices, specifically focusing on the concepts of tracks and sectors within disks.

  • 30.6.2

    Bit Density And Data Storage

    This section discusses the concept of bit density in relation to data storage, particularly in magnetic disks and how data is organized and stored.

References

39 part a.pdf

Class Notes

Memorization

What we have learnt

  • Storage devices are crucial...
  • The memory hierarchy reveal...
  • The read/write mechanisms o...

Final Test

Revision Tests