Directory Structure OS

Directory Structures:

A directory or storage device can be used in its entirety for a file system. It can also be subdivided. For example, a disk can be partitioned into quarters, and each quarter can hold a file system. 
Storage devices can also be collected together into RAID sets that provide protection from the failure of a single disk.

Partitions: Partitions are also known as slices or mini-disks.

Volume: Any entity containing a file system is generally known as a volume. The volume may be a subset of a device, a whole device, or multiple devices linked together into a RAID set. Each volume can be thought of as a virtual disk. Volumes can also store multiple operating systems, allowing a system to boot and run more than one operating system.

Operating Systems:

EasyExamNotes.com covered following topics in Operating Systems.
    A list of Video lectures
    Python Programming ↓ 👆
    Java Programming ↓ 👆
    JAVA EasyExamNotes.com covered following topics in these notes.
    JAVA Programs
    Principles of Programming Languages ↓ 👆
    Principles of Programming Languages
    EasyExamNotes.com covered following topics in these notes.

    Practicals:
    Previous years solved papers:
    A list of Video lectures References:
    1. Sebesta,”Concept of programming Language”, Pearson Edu 
    2. Louden, “Programming Languages: Principles & Practices” , Cengage Learning 
    3. Tucker, “Programming Languages: Principles and paradigms “, Tata McGraw –Hill. 
    4. E Horowitz, "Programming Languages", 2nd Edition, Addison Wesley

      Computer Organization and Architecture ↓ 👆

      Computer Organization and Architecture 

      EasyExamNotes.com covered following topics in these notes.

      1. Structure of desktop computers
      2. Logic gates
      3. Register organization
      4. Bus structure
      5. Addressing modes
      6. Register transfer language
      7. Direct mapping numericals
      8. Register in Assembly Language Programming
      9. Arrays in Assembly Language Programming

      References:

      1. William stalling ,“Computer Architecture and Organization” PHI
      2. Morris Mano , “Computer System Organization ”PHI

      Computer Network ↓ 👆
      Computer Network

      EasyExamNotes.com covered following topics in these notes.
      1. Data Link Layer
      2. Framing
      3. Byte count framing method
      4. Flag bytes with byte stuffing framing method
      5. Flag bits with bit stuffing framing method
      6. Physical layer coding violations framing method
      7. Error control in data link layer
      8. Stop and Wait scheme
      9. Sliding Window Protocol
      10. One bit sliding window protocol
      11. A protocol Using Go-Back-N
      12. Selective repeat protocol
      13. Application layer
      References:
      1. Andrew S. Tanenbaum, David J. Wetherall, “Computer Networks” Pearson Education.
      2. Douglas E Comer, “Internetworking with TCP/IP Principles, Protocols, And Architecture",Pearson Education
      3. KavehPahlavan, Prashant Krishnamurthy, “Networking Fundamentals”, Wiley Publication.
      4. Ying-Dar Lin, Ren-Hung Hwang, Fred Baker, “Computer Networks: An Open Source Approach”, McGraw Hill.