360、Most operating systems a file system, as a file system is an integral part of any modern operating system.Early microcomputer operating systems ＇ only real task was file management — a fact reflected in their names ( ).Some early operating systems had a separate component for handling file systems was called a disk operating system.some microcomputers, the disk operating system was loaded separately from the rest of the operating system.On early operating system s, there was usually support only one, native, unnamed file system; for , CP/M supports only its own file system , which might be CP/M file system” if needed, but which d id n’ t bear any official name at all. of th is, there needs to be an interface provided by the operating system software between the user and the file system.This can be textual ( ) or graphical ( ).If -, the metaphor of the folder containing docum ents, other files, and nested folders often used