Add more about containers vs vms

slides.md

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 # Problems?
 
-- 📝 **It works on my machine?!?!** - Code behaves differently in development, testing, and production due to differences in environment (OS, dependencies, configurations).
+- 📝 **It works on my machine?!?!** - Code behaves differently in dev, testing, and production due to differences in environment (OS, dependencies, configurations).
 - 🎨 **Dependency conflicts** - Different applications require conflicting versions of the same dependency (e.g., Python 2 vs 3, different Node versions).
 - 🧑‍💻 **Slow and error-prone deployments** - Traditional deployments involve manual steps or configuration drift between environments.
 
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 - Containers share the host OS kernel and are more lightweight, enabling faster startup and denser packing of applications.
 - Containers integrate well with orchestrators (like Kubernetes), enabling automated scaling, rolling updates, and fault tolerance.
 - Containers standardize development environments using tools like Docker Compose or dev containers.
+
+
+---
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+title: Differences between VM and Container?
+---
+
+# Differences between VM and Containers?
+
+::left::
+## Virtual Machine
+- Virtualizes hardware
+- Runs a full guest OS (e.g., Linux or Windows)
+- Heavier: includes the OS, libraries, and application
+- Slow to start, uses more resources
+
+**Example**: Running Ubuntu with Apache inside a VM on a Windows host
+
+::right:: 
+
+## Container
+- Virtualizes at the OS level
+- Shares the host OS kernel
+- Isolates *only the application and its dependencies*
+- Lightweight: faster startup, lower resource use
+
+**Example:** Running a Node.js app in a container using the host's Linux kernel
+
+
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+---
+
+# How do they work?
+
+
+## Containers are just processes
+
+If you don't take anything else away from this talk, I hope you walk away with a better understanding of this fundamental.  As far as the OS is concerned, a container is just another process/set of processes to the operating system.
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