Welcome to the first lecture of our 2026 Computer Networks course! In this session, we break down the fundamental building blocks of how the world stays connected. We cover everything from basic network classifications to the complex layers of data encapsulation.
Key Topics Covered: Network Types: Exploring PAN, LAN, MAN, and WAN.
Network Topologies: Understanding Star, Mesh, Ring, and Bus structures.
Reliability: The 4 pillars of network architecture: Fault Tolerance, Scalability, QoS, and Security.
Access Methods: How CSMA/CD and CSMA/CA manage data traffic.
Reference Models: A deep dive into the 7-layer OSI Model and the practical TCP/IP Suite.
Data Encapsulation: How PDUs (Segments, Packets, Frames, and Bits) move through the stack.
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