OPERATING SYSTEMS 4/4

OPERATING SYSTEMS 4/4

File System

A file system is the methods and data structures that an operating system uses to keep track of files on a disk or partition; That is, it is the way in which files are organized on the disk. The term is also used to refer to a partition or disk being used for storage, or the type of file system it uses. So one can say "I have two file systems" referring to having two partitions in which to store files, or one that uses the "extended files" system, referring to the type of the file system.

File system type
Disk File Systems
Network File Systems
Special Purpose File Systems
File System by Operating System
File Systems in Windows ............... .FAT:
File System on Linux ......................-EXT:
MacOS File System ..................-HFS:


Example of 'path' on a Unix system
So, for example, in a Unix-like system like GNU / Linux, the path for the song called "The song.ogg" of the user "So-and-so" would look something like:
/ Home / Fulano / My music / The song.ogg
where:
/ Represents the root directory where the entire file system is mounted.
Home / Fulano / My music / is the file path.
The .ogg song is the name of the file that is set to unique.
.ogg is the File Extension.
Example of 'path' in a Windows system
An analogous example in a Windows file system (specifically in Windows 8) would look like:
C: \ Users \ John \ Music \ song.mp3
where:
C: is the storage drive in which the file is located.
\ Users \ Socket \ Music \ is the path of the file.
Song is the name of the file.

.mp3 is the file extension, this element (part of the name) is especially relevant in Microsoft Windows systems, because it serves to identify what type of file it is and the application that is associated with the file in question, ie with what Program can be opened and read, edited or played back. For most modern operating systems file extension is a bureaucratic complement only useful for user observation, since the various file and application management environments analyze the information contained in the beginning of the file (MIME headers ) To determine its function or association, which is usually cataloged in the MIME Content-Type table in the system. The Windows system allows hiding the extension of the files if the user wishes, otherwise the extension appears in the names of all files. In the Windows XP operating system, if the user changes the file extension, the file may become unusable if the new extension associates it with a program that does not have the ability to edit or play that file type. Some users also enable the display of extensions on Windows systems as a precaution to avoid viruses that use icons or names similar to the user's personal files, since the extension allows to identify the .EXE files (executable in Windows).