file system - Computer Definition
(1) The software that people use to copy, move, rename and delete files is known as a "file manager," not a file system (see file manager).
(2) The method for storing and retrieving files on a disk. It is system software that takes commands from the operating system to read and write the disk clusters (groups of sectors). The file system manages a folder/directory structure, which provides an index to the files, and it defines the syntax used to access them (how the "path" to the file is coded). File systems dictate how files are named as well as the maximum size of a file or volume. There are numerous file systems in use; for example, FAT32 and NTFS are Windows file systems, and HFS is used on Macs. Linux uses ext2, ext3 and FAT32. Unix systems use UFS, ext2, ext3 and ZFS. See block level, cluster, path, FAT32, NTFS, HFS, NFS, UFS, ext, ZFS and hierarchical file system.