Lesson Notes By Weeks and Term v4 - SHS 2
DATA COMMUNICATION AND NETWORK SYSTEMS
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DATA COMMUNICATION AND NETWORK SYSTEMS
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Subject: Computing
Class: SHS 2
Term: 1st Term
Week: 20
Grade code: 2.1.3.LI.3
Strand code: 1
Sub-strand code: 3
Content standard code: 2.1.3.CS.1
Indicator code: 2.1.3.LI.3
Theme: COMPUTER ARCHITECTURE & ORGANISATION
Subtheme: DATA COMMUNICATION AND NETWORK SYSTEMS
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Welcome, learners. In our daily lives, we are constantly connected. We use our phones to connect to MTN, Vodafone/Telecel, or AT; we connect to Wi-Fi in an internet café or at school. But have you ever wondered *how* these devices are arranged to communicate effectively? The physical layout or arrangement of computers and devices in a network is called its topology. Understanding different topologies is like understanding the different ways roads can be laid out in a city. Some layouts are cheap but can get congested easily, while others are more reliable but cost more to build.
(15 mins) - Starter & Introduction Activity (Think-Pair-Share): Ask learners to think about how the desks are arranged in the classroom. Now, think about how houses are arranged along a street. What are the advantages of each layout? (This helps them grasp the concept of 'arrangement' or 'layout'). Relate this to computer networks.
What is a Network Topology?
A network topology refers to the physical or logical arrangement of nodes (devices like computers, printers, servers) in a network. It is the map or layout of the network. Physical Topology: This is the actual layout of the wires (the cables). We can see it and touch it. Logical Topology: This is how data moves across the network, which may be different from the physical layout.
For today's lesson, we will focus on the physical topology.