Computer networks are basically how our devices talk to each other without yelling across the room. 📡 In this course, we’ll explore what actually happens when you send a message, open Instagram, watch YouTube, or access a website — from your device all the way to the destination. We’ll learn the basics of networking, protocols, IP addresses, routing, switching, TCP/IP, DNS, HTTP, and network security. The course focuses on how data travels through different network layers and what happens behind the scenes. Along with the theory, we’ll use real-world examples, practical activities, and hands-on exercises to understand how networks actually work. By the end, you should be able to look at a network and say, “Okay, I finally understand where my data is going.”