Docker vs Virtual Machine: What's the Difference? 🐳💻

When I started learning DevOps, I was confused between Docker and Virtual Machines (VMs). Both help run applications, but they work in different ways.

Virtual Machine 🖥️

A Virtual Machine creates a complete virtual computer with its own operating system.

Best for:

Running different operating systems
Strong isolation
Testing Windows, Linux, or macOS
Docker 🐳

Docker uses containers that share the host operating system instead of installing a full OS.

Best for:

Fast application deployment
Microservices
Consistent development environment