File Management

• A file is a collection of related information defined by its creator.  Commonly, files represent programs (both source and object forms) and data.
• The operating system is responsible for the following activities in connections with file management:

1. File creation and deletion.
2. Directory creation and deletion.
3. Support of primitives for manipulating files and directories.
4. Mapping files onto secondary storage.
5. File backup on stable (nonvolatile) storage media.