What is a file system? Characteristics of a file system?

A file system is the method and data structure used by an operating system to specify files on a storage device (commonly a disk, but also a NANDFlash-based SSD) or partition;

i.e., methods of organizing files on a storage device.

The software organization in an operating system that is responsible for managing and storing file information is called a file management system, or file system for short.

The file system consists of three parts: the interface to the file system, the collection of software that manipulates and manages the objects, and the objects and attributes.

From a system perspective, a file system is a system that organizes and allocates space on file storage devices, is responsible for file storage and protects and retrieves deposited files.