This session introduced the fundamental concepts of Computer Networks, starting with the definition of a computer network as a system of interconnected devices that communicate and share resources such as data, applications, and internet access.

We explored different Network Types, including:

LAN (Local Area Network)

MAN (Metropolitan Area Network)

WAN (Wide Area Network)

PAN (Personal Area Network)

The discussion covered common Network Topologies, such as:

Bus

Star

Ring

Mesh

Hybrid

Participants were introduced to Network Transmission Schemes, including simplex, half-duplex, and full-duplex communication, along with basic concepts of wired and wireless transmission.

Core Network Components were explained, including routers, switches, hubs, access points, cables, servers, and client devices, highlighting their roles within a network infrastructure.

Finally, the session provided a structured explanation of the OSI Model (7 Layers) and the TCP/IP Model (4 Layers), comparing their architecture and clarifying how data moves across layers from physical transmission to application-level communication.

The objective of the session was to build a strong conceptual foundation for understanding how modern network systems operate.