What is a file system?

A file system is fundamentally a method for organizing and storing files on a disk drive. It serves as a framework that enables the operating system to manage how data is stored and retrieved on storage devices, such as hard drives or solid-state drives. The file system facilitates the creation, deletion, reading, and writing of files while maintaining their hierarchical structure, which can include folders and subfolders.

This organization is essential for efficient data management, allowing users and applications to locate and manipulate files easily. Different types of file systems may offer various features, such as file permissions, support for large file sizes, and compatibility with different storage media. In essence, the file system acts as an intermediary between the user's data and the hardware, ensuring that data can be stored securely and accessed quickly.