How does containerization e g Docker differ from virtualization

Question

How does containerization, like Docker, differ from traditional virtualization in terms of resource usage and system efficiency?

Answer 1

Think of virtualization as creating multiple virtual machines (VMs) on one physical server, each having its own operating system and resources. It’s like running several computers on one machine.

Containerization, like Docker, is lighter. It packages applications with their dependencies but uses the host system’s OS. It’s more efficient because containers share the same OS kernel, so they’re faster and use fewer resources compared to VMs.

In short, virtualization is like creating separate computers, while containerization is like isolating apps within one computer.