File Structure

File structure is a structure, which is according to a required format that operating system can understand.

• A file has a certain defined structure according to its type.
• A text file is a sequence of characters organized into lines.
• A source file is a sequence of procedures and functions.
• An object file is a sequence of bytes organized into blocks that are understandable by the machine.
• When operating system defines different file structures, it also contains the code to support these file structure. Unix, MS-DOS support minimum number of file structure.