FDOS may refer to:
- Floppy Disk Operating System, a term sometimes used to describe early floppy-based disk operating systems such as CP/M
- FDOS, the part of the Basic Disk Operating System (BDOS) implementing the filesystem in Digital Research operating systems such as the CP/M and DR-DOS families
- FreeDOS, a free disk operating system
- FDOS, First Day of Service
See also
Topics referred to by the same term This disambiguation page lists articles associated with the title FDOS.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: