Information lifecycle management (ILM) refers to creation and management of storage systems on computing devices.

ILM consists of the policies, processes, practices, and tools used to align the business value of information with the most appropriate and cost effective IT infrastructure in the life cycle of information.

ILM Policy: Storage and information policies that drive management processes.

ILM Operational: It includes backup, data protection, disaster recovery, data restore, data restart, data archiving, long-term retention, data copies, and day-to-day processes and procedures necessary to manage storage architecture.

ILM Infrastructure: It includes the logical and physical architectures, storage platforms dependent applications, storage security, data centre constraints.

ILM Functionality: For the purposes of business records, there are five phases identified-
  • Creation and Receipt – process to deal with information from its creation.
  • Distribution – Process of managing the information
  • Use- Process to use of information.
  • Maintenance- It include process such as retrieval, transformation of information.
  • Disposition- Process to handle with unnecessary or unused information’s.

Data or information stored in storage system have a specific life cycle in between data created to data destroy.

ILM is used to apply certain policies to effective information management. This practice had its basis in the management of information in paper or other physical forms such as photographs, audio or video recordings etc.

ILM related to record management. ILM includes every phase of data “record” from data’s beginning to the end of life cycle.

ILM documents the data or information in paper work. Which helps in future audits of business needs.

What is the need of ILM-
  • To reduce the cost of data storage.
  • To minimize the legal and agreement risk that may comes with data.
  • For best or most effective data utility.
  • To improve data quality.
  • To improve data security.
  • To control use of data as per data policy.
  • ILM reduces legal liability by ensuring that data is stored securely and is not is not in use for longer than is needed.
  • Data that is kept too long costs the organization unnecessarily and creates liability. It also enforces agreement policies, thereby preventing audit fines.
Some of the activities involved in ILM-
  • Main activity is database archiving.
  • Test data management
  • data privacy/data masking.
  • data removing.
  • Data minimizing, simplifying, securities are general procedures of ILM.

Python Programming ↓ 👆
Java Programming ↓ 👆
JAVA covered following topics in these notes.
JAVA Programs
Principles of Programming Languages ↓ 👆
Principles of Programming Languages covered following topics in these notes.

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 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


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

    Computer Network ↓ 👆
    Computer Network 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
    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.