📖 Lesson 6 — Introduction to the OSI Model

Lesson Introduction 🌐

Imagine sending a package across the world.

A package does not magically appear at its destination.

Many things happen:

1. Someone creates the package.
2. The package is labeled.
3. It is transported.
4. It passes through different systems.
5. It reaches the receiver.

Computer communication works in a similar way.

When you send a message, open a website, or download a file, many processes happen behind the scenes.

The question is:

How do we understand all those processes?

This is where the OSI Model comes in.

Learning Objectives

By the end of this lesson, students should understand:

✅ Why networking models exist.

✅ What the OSI Model is.