NETWORKING BY: Fergus Mawuko Afele ET/MAT/25/0068

 Networking

A computer network is a digital telecommunications network that allows nodes to share resources.

Network Topologies

Network topology refers to the structural arrangement or geometric layout of a computer network. The choice of topology affects data transfer speeds, installation costs, and fault tolerance.

1. Star Topology

In a star network, every central node connects directly to a central hub, switch, or router.
Advantage: If one peripheral cable fails, only the corresponding node is isolated; the rest of the network remains fully operational.
Disadvantage: If the central switch experiences a hardware failure, the entire network goes offline.

2. Bus Topology

A bus network utilizes a single central cable (often referred to as the backbone) to connect all devices in a linear sequence.
Advantage: Easy to set up and requires significantly less cabling than alternative topologies.
Disadvantage: A break in the main backbone cable disrupts all data communication across the network.

3. Ring Topology

In a ring topology, every device is connected to exactly two other devices, one on either side, forming a continuous circular data path. Data travels around the ring in a single direction (unidirectional) or occasionally both directions (bidirectional), passing through each computer like a relay race until it reaches its intended destination.
Advantage: Data flows in one direction, which significantly reduces data collisions compared to a bus topology. It also performs well under heavy network loads.
Disadvantage: Because all devices are linked sequentially, if a single computer goes down or a single cable breaks, the entire network loop is severed and stops functioning.

4. Mesh Topology

In a mesh topology, every single device is interconnected with multiple other devices on the network. In a full mesh setup, every node is connected directly to every other node, creating highly redundant pathways for data transmission.
Advantage: Highly redundant and fault-tolerant. If one cable or node fails, data can simply be rerouted through an alternative path, ensuring the network almost never goes completely offline.
Disadvantage: It is exceptionally expensive and complicated to install due to the massive amount of cabling and hardware ports required.

Biography

Fergus Mawuko Afele is an aspiring educator and technology enthusiast currently pursuing a Bachelor of Education in Mathematics and ICT at the University of Cape Coast. His academic foundation was shaped at Okuapemman Senior High School, where he first discovered a dual passion for Mathematics and digital systems. Now a proud affiliate of UCC's VALCO Hall, Fergus is dedicated to exploring how modern computing can be manipulated to transform the educational landscape. Driven by a commitment to innovation, his ultimate goal is to leverage his training to build smarter, more tech-forward learning environments for the next generation.