Tree Structured Directory Structure Tutorial - 6

To understand the tree structured directory,its advantages and limitations
see the complete series File System Implementation in file systeminterface.
https://www.youtube.com/playlist?list=PLskQvPDUk0sKgGGReUz7nMwYkDTbevUC1
File System Interface https://www.youtube.com/playlist?list=PLskQvPDUk0sLsU1Vv5jSr-P-1yTt0AqdJsee the complete series File System Implementation https://www.youtube.com/playlist?list=PLskQvPDUk0sKgGGReUz7nMwYkDTbevUC1
File System Interface https://www.youtube.com/playlist?list=PLskQvPDUk0sLsU1Vv5jSr-P-1yTt0AqdJ
see the complete series Operating System-process synchronization at https://www.youtube.com
/watch?v=TLwuWlcnXjE&list=PLskQvPDUk0sJ6RRPdkgO2qziych6vQwZ1
Operating System-Memory Management
https://www.youtube.com/playlist?list=PLskQvPDUk0sJnmLgi4qBRyshlmHydbsAJ
In the two level directory structure even though each user is having a separate directory within this directory the files are not at all organised.To Overcome this limitations the two level directory structure is extended to form tree structure directory. Here there is a root level directory.There on each directory contains a set of subdirectories or a set of files or both.

The root is a directory.Each directory can contain a set of files or directory and the files are the leaves.

Every file will be having a unique path name which is the path from the root through all subdirectories to the file. Path name can be of two types absolute path name or relative path name. The absolute path name starts from the root and follows a path with all subdirectories to the file.