Transmission Mode in Data Communication

Duration: 7 min

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Module outline

  1. General Intelligence & Reasoning: Analogy, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Blood Relations, Directions (Direction Test), Ranking, Order and Sequence, Logical Sequence Of Words, Syllogisms, Venn Diagram, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Selection Decision Table (Decision Making), Data Sufficiency, Puzzle Solving (Puzzles), Data Arrangement, Cubes & Dices, Calendar, Clock, Arithmetic, Number System, HCF LCM, Verbal Analogy (Word Based Analogy), Visual Recognition and Figure Completion, Paper Folding and Cutting, Transformation of Shapes, Clocks and Calendars, Direction Sense, Cubes and Dice, Patterns in Two-Dimensional Figures, Seating Arrangements, Analogy and Classification, Logical Deduction and Induction, Alphabet and Word Tests, Mathematical Operations, Series Completion, Simplification and Approximation, Coding and Decoding, Numerical Reasoning, Assembling and Grouping of Shapes, Three-Dimensional Patterns and Visualization, Vocabulary, Number System, Averages, Mixtures and Alligation, Simple and Compound Interest, Percentages, Algebra, Speed, Time and Distance, Seating and Arrangement Puzzles, Traverse Surveying, Order, Ranking and Sequence, Constraint Puzzles, Syllogisms and Venn Diagrams, Reading Comprehension, Critical Reasoning, Permutations and Combinations, Narrative Sequencing, Project Monitoring, Resources and Safety, Profit, Loss and Discount, Ratio and Proportion, Time and Work, Mensuration, Data Interpretation, Powers, Surds and Logarithms, Sequences and Series, Articles and Determiners, Sentence Completion, Data Sufficiency, Blood Relations, Simple Interest and Compound Interest, Mixture and Alligation, Sequence and Series (Series), Speed Time and Distance, Algebra, Profit and Loss, Powers and Exponents (Surds and Indices), Permutation and Combination
  2. General Awareness: Physics, Chemistry, Biology, History, Geography, Polity, Indian Economy, Environment, Static General Knowledge, GK- Current Affairs, Artificial Intelligence, MS Office Applications, Terms & Abbreviations, Keyboard Shortcuts, Evolution of Indian Banking (Banking & Financial Awareness), Emerging Tech Trends
  3. Engineering Mathematics: Set Theory, Relations, Functions, Graph Theory, Group Theory, Propositional and Predicate Logic, Linear Algebra, Calculus, Probability, Statistics, Signal Space and Optimum Detection, Probability, Statistics
  4. Digital Logic: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation, Floating Point Rep, Number Systems and Codes, Registers and Counters, Boolean Algebra and Logic Gates, Microprocessors and Microcontrollers, Logic Families and CMOS Logic, Microprocessors, Logic Gates and Boolean Algebra, Minimization of Boolean Functions, Timing, Hazards and Testing, Logic Families, Combinational Logic Design, Arithmetic Circuits, Waveform Generators and Timer Circuits, Semiconductor Memories and Programmable Logic Devices, Combinational Logic Circuits, Latches and Flip-Flops, Finite State Machines, Sequential Circuits and State Machines, Minimization of Boolean Functions, Arithmetic Circuits, Latches and Flip-Flops, Number Systems and Codes, Registers and Counters
  5. Computer Organisation & Architecture: Basics of COA, Cache Memory Organization, Input Output Organisation, Pipelining, Instr Formats & Modes, Control Unit Design, Programming the Basic Computer, Register Transfer and Microoperations, Semiconductor Memories and Programmable Logic, Processor Organization and Instructions, Memory Hierarchy and Input/Output, Registers and Counters
  6. Programming & Data Structures: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling, Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, HTML Basics, OOPS with C++, Java, Object Oriented Technology
  7. Databases: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, SQL, Relational Calculus, Transaction Management, Concurrency Control, Database Recovery, Database Security & Authorization
  8. Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Dynamic Programming, Minimum Spanning Trees, Shortest Path Algos
  9. Theory of Computation: Introduction to TOC, Deterministic FA (DFA), Non-Deterministic FA, Regular Expressions, Grammar, Regular Language Properties, Moore & Mealy Machines, Pushdown Automata & CFG, Turing Machines, Complexity Theory
  10. Compiler Design: Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization, Run Time Environment
  11. Operating System: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Threads & Process Creation, Deadlock, Memory Management, Virtual Memory, Disc Scheduling, File Management, Security, Windows OS, Distributed Systems, Unix OS, Linux OS
  12. Computer Networks: Introduction to CN, DLL: Access Control, DLL: Flow Control, DLL: Error Control, DLL: Framing, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware Basics, Data Communication, Website, Browser & Services, Web Design & Development, Network Security, Cyber Threats and Malware Attacks, Cyber Safety and Security
  13. Full Length Mock Tests:
  14. Sectional Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

The lecture introduces transmission modes in data communication, classifying them into Simplex, Half-Duplex, and Full-Duplex. It begins with a hierarchical diagram branching from the main 'Transmission mode' category into these three modes, then transitions to detailed explanations. Simplex is defined as unidirectional communication, likened to a one-way street, where one device always sends and the other always receives. The entire channel capacity is used for data transmission in a single direction, with examples including radio and mouse. The instructor uses diagrams showing two computers marked 'S' (sender) and 'R' (receiver) joined by a single arrow labeled 'One direction only.' The lecture then moves to Half-Duplex mode, where each station can both transmit and receive, but not at the same time. This is compared to a one-lane road or walkie-talkies, where when one device is sending, the other can only receive. A diagram shows two computers with opposing arrows and the caption 'Both directions but only one at a time.' Finally, Full-Duplex mode is explained as allowing both stations to transmit and receive at the same time. A telephone network is given as an example, with channel capacity divided between the two directions. A diagram shows two computer stations joined by two opposing arrows, captioned 'Both directions at the same time,' alongside a photo of a multi-lane highway to illustrate simultaneous bidirectional traffic.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video introduces transmission modes in data communication, categorizing them into Simplex, Half-Duplex, and Full-Duplex using a hierarchical diagram. It transitions to Simplex mode, defined as unidirectional communication like a one-way street. The slide states 'Simplex – the communication is unidirectional, as a one-way street' and notes that one device always sends while the other receives. Examples like radio and mouse are provided, with a diagram showing two computers marked 'S' and 'R' connected by a single arrow labeled 'One direction only.'

  2. 2:00 – 5:00 02:00-05:00

    The lecture shifts to Half-Duplex mode, where each station can both transmit and receive but not simultaneously. The slide states 'each station can both transmit and receive, but not at the same time,' comparing it to a one-lane road or walkie-talkies. A photo of soldiers holding radios labeled 'Walkie-talkies' is shown, with red curved arrows drawn over the antennas. A diagram on the right shows two computers with opposing arrows and the caption 'Both directions but only one at a time,' marked with handwritten 'S' and 'R.'

  3. 5:00 – 7:17 05:00-07:17

    The final section covers Full-Duplex mode, where both stations can transmit and receive at the same time. The slide notes that a telephone network is an example and channel capacity 'must be divided between the two directions.' A photo of a multi-lane highway with cars is shown on the left, with red hand-drawn loops and arrows illustrating traffic moving in both directions at once. On the right, a 'Full-Duplex' diagram shows two computer stations joined by two opposing arrows, captioned 'Both directions at the same time.'

The lecture systematically explains three transmission modes in data communication: Simplex, Half-Duplex, and Full-Duplex. It uses analogies (one-way street, one-lane road, multi-lane highway) and real-world examples (radio, mouse, walkie-talkies, telephone network) to clarify each mode. Diagrams consistently show two computers with arrows indicating data flow direction, labeled 'S' for sender and 'R' for receiver. The progression moves from unidirectional (Simplex) to alternating bidirectional (Half-Duplex) to simultaneous bidirectional (Full-Duplex), emphasizing how channel capacity is utilized in each case. Visual aids include photos of people, soldiers with radios, and a highway to reinforce the analogies.

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