Table of Contents

  1. Introduction
  2. Serial and Parallel Communication
    1. Serial and Parallel Comparison
    2. Serial Communications Equipment
    3. Standards Organisations
  3. Error Detection
    1. Even Parity Error Detection
    2. Odd Parity Error Detection
    3. Error Detection: Block Check Sum
  4. Data Communications Equipment (DCE)
  5. Data Terminal Equipment (DTE)
    1. Data Communications SAQ1
    2. Data Communications SAQ2
  6. Transmission Modes
    1. Simplex
    2. Half-Duplex
    3. Full-Duplex
    4. Data Transmission SAQ1
    5. Data Transmission SAQ2
  7. Baud and Data Rates
    1. Baud Versus Data Rates
    2. Bandwidth SAQ
  8. The OSI Reference Model
    1. Layers of the OSI Model
    2. OSI Model Explained
    3. Layer 7: Application
    4. Layer 6: Presentation
    5. Layer 5: Session
    6. Layer 4: Transport
    7. Layer 3: Network
    8. Layer 2: Data Link
    9. Layer 1: Physical
    10. OSI Model in a Human Context
    11. James Bond and the OSI Model
    12. OSI Model Crossword
    13. OSI SAQ
  9. Analogue and Digital Signals
    1. Digital Signals
  10. Asynchronous and Synchronous Transmission
    1. Synchronous Transmission
    2. Synchronous Transmission SAQ
  11. Transmission Problems
    1. Attenuation
    2. Crosstalk
    3. Attenuation to Crosstalk Ratio (ACR)
    4. Noise
    5. Skew
    6. Signals SAQ1
    7. Signals SAQ2
    8. Basic Concepts Crossword
    9. Formative Assessment