Evolution

Duration: 6 min

This video lesson is available to enrolled students.

Return to /learn/NTA-UGC-NET-PAPER---1/paper-1-unit-8-information-and-communication-technology/introduction-to-cn/basics-criteria/asset-evolution after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. Paper - 1 | Unit - 1 | Teaching Aptitude: Nature, Objectives & Characteristics of Teaching, Learners & Learning Process, Factors Affecting Teaching, Methods of Teaching, Teaching-Learning Aids & ICT Integration, Evaluation, Assessment & Measurement
  2. Paper - 1 | Unit - 2 | Research Aptitude: Introduction to Research, Validity & Reliability, Research Paradigms & Types of Research, Research Process Steps, Research Ethics, Writing & Publication
  3. Paper - 1 | Unit - 3 | Comprehension: Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions)
  4. Paper - 1 | Unit - 4 | Communication: Communication Basics, Language and Semiotics, Types of Communication, Communication Models, Mass Communication, Mass Media, Journalism, General Knowledge and General Studies related to Communication
  5. Paper - 1 | Unit - 5 | Mathematical Reasoning and Aptitude: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Number System, Percentage, Ratio and Proportion (Ratios), Simple Interest and Compound Interest, Speed Time and Distance, Powers and Exponents (Surds and Indices), Profit and Loss, Average, Blood Relations, Directions (Direction Test), Analytical Reasoning (Counting Figures Reasoning), Verbal Analogy (Word Based Analogy), Divisibility Rules, Calendar, Miscellaneous, Time and Work, Algebra, Permutation and Combination, Probability
  6. Paper - 1 | Unit - 6 | Logical Reasoning: Syllogisms, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Venn Diagram, School Of Thoughts, Fallacy, Western Logic
  7. Paper - 1 | Unit - 7 | Data Interpretation: Data Interpretation
  8. Paper - 1 | Unit - 8 | Information and Communication Technology: MS Office Applications, Cyber Threats and Malware Attacks, Role of Internet and Web Services, Electronic Data Interchange and E-Commerce, Internet Fundamentals, Web Design & Development, Web Publishing & Hosting, Emerging Technologies, Terms & Abbreviations, Artificial Intelligence, Basics of COA, Introduction to OS, Introduction to CN, Data Communication, Net Layer: IP Addressing, Network Security, Number System, Number Representation, Society, Law & Ethics, Keyboard Shortcuts, Website, Browser & Services
  9. Paper - 1 | Unit - 9 | People Development and Environment: Ecosystem, Biomes & Environmental Issues, MDG & SDG, Air Pollution, Water Pollution, Soil, Noise Pollution and Waste Management, Natural Resources, Energy & Disaster Management, Global Environmental Conventions – COP, Protocols & ISA
  10. Paper - 1 | Unit - 10 | Higher Education System: Vedic Education, Jainism & Buddhism, Ancient Universities, Pre-Independence Commissions, Post-Independence Policy, Higher Education Structure & Accreditation, Universities & Learning Programmes, Types of Education & NEP 2020
  11. Live Classes: NTA UGC NET 2025 Live Class
  12. Full Mock Tests:
  13. Previous Year Papers:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This lecture traces the evolution of computer networking from isolated standalone machines to the modern Internet. It begins by defining the pre-networking era, where data transfer relied on physical media like punch cards and floppy disks via 'sneaker-net' methods, highlighting the inefficiencies that drove electronic networking. The course then details ARPANET (1969), the first packet-switching network developed by DARPA to withstand partial failure, and its 1983 migration to the TCP/IP suite. This is followed by NSFNET (1986), a high-speed backbone that replaced ARPANET as the primary government network. The lecture concludes with the commercialization of the Internet in the 1990s, the birth of the World Wide Web by Tim Berners-Lee in 1991, and the characteristics of the modern decentralized Internet.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The instructor introduces the 'Evolution of Networking' slide, outlining the progression from isolated systems to a global network. The focus is on the 'Before Networking' era, where standalone computers could not communicate directly and relied on manual data transfer using physical media. On-screen text lists 'Punch Cards, Magnetic Tapes, or Floppy Disks' and the term 'Sneaker-net.' The instructor uses red underlines to emphasize key terms like 'isolated machines' and draws arrows to illustrate the manual transfer process, noting that this era was slow, error-prone, and inefficient.

  2. 2:00 – 5:00 02:00-05:00

    The lecture shifts to the technical milestones of networking. It covers ARPANET, developed by DARPA in 1969, which introduced 'Packet Switching' to create a reliable network that could withstand partial failure. A diagram shows the first successful message sent between UCLA and Stanford Research Institute (SRI). The instructor then explains the 1983 migration to the TCP/IP suite, describing it as a 'universal language' that standardized the Internet. This is followed by the 1986 launch of NSFNET, a high-speed backbone connecting researchers to supercomputing centers via a 56 kbps link.

  3. 5:00 – 6:12 05:00-06:12

    The final section covers the transition from a government-funded tool to a commercial 'public utility' in the 1990s. The instructor highlights the emergence of ISPs and the 'Birth of the Web' in 1991 by Tim Berners-Lee. The lesson concludes with a definition of the 'Modern Internet' as a massive, decentralized network characterized by ubiquity and real-time communication. On-screen text identifies key modern components such as the 'Internet of Things (IoT)' and the continued reliance on the TCP/IP protocol suite.

The lecture follows a chronological pedagogical structure, moving from the limitations of manual data transfer to the technical foundations of modern networking. Key concepts include 'Packet Switching' as a core ARPANET technology and the TCP/IP suite as the standardizing force of 1983. The transition from ARPANET to NSFNET is presented as a shift toward higher speed and broader academic access, while the 1990s represent the commercialization of these government-built infrastructures. The instructor uses visual cues like red underlines and diagrams to reinforce the progression from isolated systems to a globally interconnected, decentralized network.

Loading lesson…