INFORMATION COMMUNICATION TECHNOLOGY (ICT)
Previous lesson :
The pupils have previous knowledge of
DESCRIPTION OF LOCAL AREA NETWORK AND LARGE AREA NETWORK
DEFINITION AND TYPES OF NETWORK TOPOLOGY
Behavioural objectives :
At the end of the lesson, the pupils should be able to
- define network topology
- list the benefits of network topology
- mention places where local and large area network are best used or utilized
Instructional Materials :
- Wall charts
- Related Online Video
- Flash Cards
- A Desktop computer of Laptop
Methods of Teaching :
- Class Discussion
- Group Discussion
- Asking Questions
- Role Modelling
- Role Delegation
Reference Materials :
- Scheme of Work
- Online Information
- 9 Year Basic Education Curriculum
Network topology is the name that is used to describe the techniques or methods by which computers are arranged or networked together in a Local Area Network.
It canal also described as the arrangement of computers in a Local Area Network environment. There are three major types of arrangement or network topology. These are:
- Bus topology
- Star topology and.
- Ring 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.
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.
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.
The topic is presented step by step
The class teacher revises the previous topics
He introduces the new topic
The class teacher allows the pupils to give their own examples and he corrects them when the needs arise
The class teacher wraps up or conclude the lesson by giving out short note to summarize the topic that he or she has just taught.
The class teacher also goes round to make sure that the notes are well copied or well written by the pupils.
He or she does the necessary corrections when and where the needs arise.
- Explain the meaning of BUS computer topology.
- What is the meaning of RING computer network topology
- Explain STAR computer topology
- Explain the meaning of Large Area Network
- Write out three advantages of Large Area Network
- Mention five computer users
Prepare for the next lesson by reading more about computer topology