Linked by Thom Holwerda on Sun 28th Jun 2009 17:22 UTC, submitted by Jim Hall
MS-DOS is an old piece of work, a long line of operating systems dating back to the early '80s. First a stand-alone operating system, it would later work as a base for Windows, and starting with Windows 95, it became integrated with Windows and was no longer developed as a stand-alone operating system. To fill the gap the end of MS-DOS left behind, the FreeDOS project was started. Today, FreeDOS turned 15.