What is Directory Entries:
Information about files is stored in directory entry. This information depends on the operating system. A directory entry contains information about the file ownership, location, size, access rights and times of events like last medication and creation etc.
Most operating systems require a file to be opened before it can be accessed. The open operation obtains a pointer to the files directory location. All subsequent reference to the file occur via the pointer rather than file's name.
On some systems, the directory entry points to a separate file structure that contains information about the file's record. On Unix system, file information is stored in a structure called inode. The directory entry contains only the file's name and its inode number.
