| Abbreviation | Definition |
|---|---|
| FBM | Fix Block Modus |
| FBS | File system Block Size |
| FC | File Control |
| FCA | Functional Configuration Audit |
| FCB | Format Control Buffer |
| FCGP | Fiji College of General Practitioners |
| FCP | File Control Program |
| FCR | Field Change Revision |
| FCS | First Copy Shipped |
| FCS | Future Combat System |
| FCT | File Control Table |
| FCW | Federal Computer Week |
| FD | File Descriptor |
| FD | Floppy Disk |
| FD | FTP (File Transfer Protocol) Directory |
| FDF | Fast Data Finder |
| FDF | Form Data Format |
| FDF | Forms Data Format |
| FDG | Functional Dependency Grammar |
| FDI | Floppy Disk Image |