:) What is a file system?Ī file system defines how files are named, stored, and retrieved from a storage device.Įvery time you open a file on your computer or smart device, your operating system uses its file system internally to load it from the storage device. But I'll sneak into the lower-level concepts as well, as long as it doesn't get boring.

This post is meant to be a high-level overview of file systems. That's why I decided to write an article about it. It's a bit tricky to explain what exactly a file system is in just one sentence.