Chapter 4: Layer 1 - Electronics and Signals Outline:

Chapter Review |
Chapter Overview |
4.1 | Basics of Electricity

4.1.1 | A helium atom
4.1.2 | Creating stable atoms
4.1.3 | Static electricity
4.1.4 | Electrical current including insulators, conductors, and semiconductors
4.1.5 | Electrical measurement terms
4.1.6 | Analogy for voltage, resistance, and current
4.1.7 | Graphing AC and DC voltage
4.1.8 | Constructing a simple series electrical current
4.1.9 | Purpose of grounding networking equipment

4.2 | Basics of Digital Multimeters

4.2.1 | Safe handling and use of the multimeter
4.2.2 | Using a multimeter to make resistance measurements
4.2.3 | Using a multimeter to make voltage measurements
4.2.4 | Measuring simple series circuit
4.2.5 | Constructing a simple electrical communication system

4.3 | Basics of Signals and Noise in Communications Systems

4.3.1 | Comparing analog and digital signals
4.3.2 | Using analog signals to build digital signals
4.3.3 | Representing one bit on a physical medium
4.3.4 | Network signal propagation
4.3.5 | Network attenuation
4.3.6 | Network reflection
4.3.7 | Noise
4.3.8 | Dispersion, jitter, and latency
4.3.9 | Collision
4.3.10 | Messages in terms of bits

4.4 | Basics of Encoding Networking Signals

4.4.1 | Historical examples of encoding
4.4.2 | Modulation and encoding

Chapter Summary |
Chapter Quiz |