WEEK 4&5

Subject: Information and Computer Technology�

Term: 1st Term

Class: Primary 6

Topic: Network Topology

Behavioral Objectives: At the end of the lesson, Pupils should be able to;

i.) Define Network topology computer - Bus, Ring and star

ii.) State types of topology laboratory

iii.) Sketch bus and ring work topology

iv.) Describe and sketch star Topology

INSTRUCTIONAL MATERIALS:

A functional computer system

Reference Materials

Lagos state scheme of work,

Online information

Relevant materials

Pupils textbook

�

Behavioral Objectives: pupils are familiar with the topic in their previous classes

�

CONTENT

NETWORK TOPOLOGY

Network topology is the techniques or methods by which computers are networked together in a Local Area Network. It canal sobe described as the arrangement of computers in a Local Area Network environment. There are three major types of arrangement or network topology. These are:

1. Bus topology
2. Star topology
3. Ring topology

BUS TOPOLOGY

In this type of network arrangement, computers are connected serially. This means they are connected to one central communication line. The effect of this is that transmission from one computer answers at the same time from both directions.

�

This type of networking system is not very good because if one work station breaks down, the whole network will automatically be affected.�

STAR TOPOLOGY

This kind of network system allows work stations to be connected to a central computer or server. In this type of network communication link between the work stations is only through the server. This is because the work stations cannot communicate with one another without going through the server.

�

RING TOPOLOGY

The method used in ring topology allows work stations to be connected to the server and as well to themselves i.e. work station to work station.

�

This system allows work stations to communicate with one another without necessarily going through the server.�

In this case if one system breakdown, it does not affect the operations of the other work stations on the network. This is the best network technique so far.

ASSESSMENT AND EVALUATION

i.) Define Network topology computer- Bus, Ring and star

ii.) State types of topology laboratory

iii.) Sketch bus and ring work topology

iv.) Describe and sketch star Topology

WRAP-UP (CONCLUSION): Teacher goes over the topic once again for better understanding

ASSIGNMENT

i.) Define Network topology computer- Bus, Ring and star

ii.) State types of topology laboratory

iii.) Sketch bus and ring work topology

iv.) Describe and sketch star Topology