E-commerce

Duration: 1 min

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Inside: a video lesson and guided study material.

Module outline

  1. About the course: About the Course
  2. General Knowledge: Polity, Physics, Biology, State Wise GK, Chemistry, History, Geography, GK- Current Affairs, Indian Economy, Static General Knowledge, Environment, Evolution of Indian Banking (Banking & Financial Awareness)
  3. Mental Aptitude and Reasoning: Ratio and Proportion (Ratios), Divisibility Rules, Data Interpretation, Permutation and Combination, Number System, Sequence and Series (Series), Speed Time and Distance, Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Vocabulary, Profit and Loss, Arithmetic, Mental Ability, Percentage, Algebra, Mensuration and Geometry, Age Problems, Clock, Calendar, Verbal Analogy (Word Based Analogy), Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Analogy, Analytical Reasoning (Counting Figures Reasoning), Puzzle Solving (Puzzles), Selection Decision Table (Decision Making), Cubes & Dices, Blood Relations, Venn Diagram, Logical Sequence Of Words, Inequality, Directions (Direction Test), Data Arrangement, Facts, Inference and Judgements, Syllogisms, Seating Arrangements, Ranking, Order and Sequence
  4. CS | Computer Fundamentals: Basics of COA, Number System, Number Representation, C Fundamentals, Algorithm Analysis, Input Output Organisation
  5. CS | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, SQL
  6. CS | Workplace productivity Tools: MS Office Applications, Keyboard Shortcuts
  7. CS | Computer Networks: Introduction to CN, Data Communication, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, Application Layer, Hardware Basics, Network Security
  8. CS | The Internet: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Web Publishing & Hosting, Server Side & Security, Emerging Technologies
  9. CS | Emerging Technologies: Artificial Intelligence, Emerging Tech Trends, Introduction to OS, Windows OS, Linux OS, Unix OS, JavaScript-Basics
  10. CS | Boolean algebra: Digital Systems & Boolean Basics, Boolean Expression, Boolean Minimization, Logic Gates & Hardware
  11. CS | Data Structures: Introduction to DS, Array, Stack, Queue
  12. CS | Cryptography: Society, Law & Ethics, Cyber Threats and Malware Attacks, Role of Internet and Web Services, Security in Mobile and Wireless Computing, Electronic Data Interchange and E-Commerce, Physical Security and Cryptography Basics, Intrusion Detection Systems (IDS), Cyber Safety and Security
  13. UP Police Previous Year Papers:
  14. UP Police Full Mock Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

The video lecture provides an overview of internet protocols and concepts, specifically focusing on Usenet and E-commerce. The initial segment displays text defining Usenet as a global network of news discussion groups where users can browse and comment on posts using newsreader software. It explicitly mentions the use of the Network News Transfer Protocol (NNTP). The lecture then transitions to point number 12, defining E-commerce as electronic commerce. This is described as a business concept enabling businesses and individuals to buy and sell goods through the internet. The instructor highlights specific examples such as Amazon and Flipkart, noting they are websites or apps.

Chapters

  1. 0:00 – 1:12 00:00-01:12

    The instructor begins by explaining Usenet, showing text that details how newsgroups contain conversations on specific topics. She then introduces E-commerce, underlining key terms like 'internet' and 'Example: Amazon, Flipkart'. As she speaks, she draws a diagram to illustrate network connectivity. This diagram features a stick figure representing a user connected to a computer server. She labels the connection line with 'PING' and 'ICMP' (Internet Control Message Protocol), indicating a check for reachability, which she writes as 'Reachable' next to the server. Finally, she writes 'Shopping' and 'Selling' on the left side of the screen to reinforce the core activities of e-commerce.

The lesson effectively bridges technical networking concepts with practical business applications. By defining Usenet and E-commerce, the instructor establishes a foundation for understanding how information and goods are exchanged over the internet. The diagram serves as a visual aid to explain how connectivity is verified using ICMP and PING, which is fundamental for the online transactions described in the e-commerce section. The handwritten notes emphasize the dual nature of e-commerce: buying (shopping) and selling.

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