What is Docker? I Wish Someone Explained It Like This Earlier

I wish someone had explained Docker to me like this when I started. "It works on my machine." If you've ever heard a developer say that, you've seen the exact problem Docker solves. In this video we start from absolute zero, from how a computer understands 1s and 0s, and climb step by step to Docker. No experience needed. If you can follow a recipe, you can follow this. You'll learn: • How a computer "thinks" in 1s and 0s • What a program, a compiler and an interpreter are • What libraries and package registries are (PyPI, npm, Maven, NuGet) • How teams share code with Git, repos and CI/CD • Physical servers vs virtual machines • What a container is, and why it's lighter than a VM • Dockerfile vs image vs container • Docker Hub and Azure Container Registry The analogy: a program is a recipe, a library is a shop-bought sauce, and a container is a sealed meal kit that cooks the same dish in any kitchen. ⏱️ Chapters 0:00 The problem: "It works on my machine" 0:24 How a computer thinks (1s and 0s) 1:46 Borrowing other people's code (libraries) 2:41 Cooking as a team (Git, repos, CI/CD) 3:31 Where does the app live? (servers and VMs) 4:28 Enter the container (Docker) 6:03 Recap: the whole journey 6:31 What's next: Kubernetes 👉 Next video: Docker vs Kubernetes, the meal kit vs the kitchen. Subscribe so you don't miss it. 💬 What should I explain from zero next? Tell me in the comments. #Docker #DevOps #Containers