Lesson Notes By Weeks and Term v4 - SHS 1
GUIDED AND UNGUIDED NETWORK SYSTEMS
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GUIDED AND UNGUIDED NETWORK SYSTEMS
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
Subject: Ict
Class: SHS 1
Term: 2nd Term
Week: 18
Grade code: 2.2.1.LI.2
Strand code: 2
Sub-strand code: 1
Content standard code: 2.2.1.CS.1
Indicator code: 2.2.1.LI.2
Theme: NETWORK SYSTEMS FOR TRANSMI TTING INFORMATION
Subtheme: GUIDED AND UNGUIDED NETWORK SYSTEMS
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Imagine two people trying to talk to each other. They need two things: a medium for their voices to travel (like the air between them) and a common language they both understand (like Twi, Ga, or English). In the world of computers, it's the same. The "medium" can be a physical cable (guided) or wireless waves (unguided). The "common language" is a set of rules called a protocol. In Ghana today, we use these protocols every single time we use our phones or computers. When you send money with MTN MoMo, check results on the WAEC portal, watch a video on YouTube, or share a file with a friend using Xender, you are using network protocols.
This section breaks down the essential protocols and standards you need to know. What is a Network Protocol?
A network protocol is a set of established rules that determine how data is formatted, transmitted, and received between devices on a network. Think of it as the grammar and vocabulary for computers. Without these rules, a laptop from HP wouldn't be able to communicate with a server from Dell, and your Tecno phone wouldn't be able to connect to a Wi-Fi router. Protocols ensure orderly and reliable communication.
We can group these protocols based on their primary function or the type of medium they use. A. Protocols for Network Access (The Connection Itself)
These protocols are mainly concerned with how devices connect to a network, either through a wire or through the air.