| Abbreviation | Definition |
|---|---|
| FINE | Fine Is Not EMACS |
| FIO | Future Input/ Output |
| FIOC | Forced Indentation Of Code |
| FIOV | Viewer for .fio files |
| FIPG | Fraternal Information and Programming Group |
| FIR | Finite Impulse Response |
| FISL | Forum Internacional Software Livre |
| FIT | Foundation Information Technology |
| FIT | Framework for Integrated Tests |
| FITS | File Image Transfer Software |
| FITS | Framework for ICT Technical Support |
| FITW | Fine Tuning of Windows |
| FIWP | Field Installation Work Packages |
| FIWP | Field Installed Work Packages |
| FL | Fortran Library |
| FLAP | Failure Location Analysis Program |
| FLD | Field Liaison Division |
| FLI | Foreign Language Interface |
| FLIR | FaceLift Image Replacement |
| FLIRT | Fast Library Identification And Recognition Technology |