Networking Basic 5 Computer Studies Lesson Note

LESSON 1 – INTRODUCTION

MEANING OF COMPUTER NETWORK:

Networking is the sharing of data (information) between a set of connected computers.

It is the sharing of data (information) between a set of connected computers.

Networking has become one of the most successful ways of sharing information, where all computers are wirelessly linked together by a common network.

TYPES OF NETWORKING:

There are three (3) of computer network:

1. Local Area Network (LAN)
2. Metropolitan Area Network (MAN)
3. Wide Area Network (WAN)

LOCAL AREA NETWORK (LAN):

LAN is a set of computers connected together, usually within the same building.

For example – residence, school, laboratory, office within the same building.

METROPOLITAN AREA NETWORK (MAN):

MAN is a set of computers connected together, usually within the same city.

For example – Lagos state.

WIDE AREA NETWORK (WAN):

WAN is a world wide network.

It connects large number of computers together.

LESSON 2 – COMPUTER NETWORK REQUIREMENTS

The requirements for computer network are as follows:

1. Connecting cables
2. A central computer
3. Other computers
4. Switch or Hub
5. Network card for each computer

WHERE COMPUTER NETWORKS ARE USED:

Computer networks are used in the following:

1. Schools e.g. University of Lagos, Lagos State Government University, Yaba College of Technology, etc. 
2. Government Offices e.g. Lagos State Government, Lagos – Ikeja 
3. Hotel Reservation System e.g. Federal Palace Hotel, Sheraton Hotel 
4. Banking Industry e.g. First bank, UBA, Union bank 
5. Television Stations e.g. NTA, Silverbird, Dstv 
6. Telecommunication Companies e.g. MTN, GLO, 9mobile 
7. NNPC Office 
8. JAMB, NECO AND WAEC 

LESSON 3 – USES OF NETWORKING

The uses of networking are as follows:

1. It used for sharing resources 
2. It provides high reliability 
3. It is saves money 
4. It used as medium of communication 
5. It enhances communication and availability of information 
6. It makes file sharing easier between different users 

REVISION AND WEEKLY ASSESSMENT (TEST)

PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

1. To revise the lesson: The teacher revises the lesson on the previous lesson. Based on this, he/she asks the pupils some questions. 
2. Teacher organizes pupils in groups or pairs depending on the size of the class and available computers. 
3. Teacher displays chart showing types of computer network. 
4. Teacher tells pupils identify uses of computer network in their environment. 

Pupil’s Activities: – Identify and differentiate between different types of computer network.