
A system file in computing is a critical computer file without which a computer system may not operate correctly. These files may come as part of the operating system, a third-party device driver or other sources. Microsoft Windows and MS-DOS mark their more valuable system files with a `system` attribute to protect them against accidental delet.....
Found on
http://en.wikipedia.org/wiki/System_file

The Macintosh file that contains system software for the Macintosh OS, including patches or replacements to obsolete code contained in ROM.
Found on
https://www.encyclo.co.uk/local/22803
No exact match found.