| Abbreviation | Definition |
|---|---|
| PEX | Phigs Extensions To X |
| PEX | Photo EXplorer |
| PFA | Postscript Font ASCII |
| PFC | Personal Filing Cabinet |
| PFE | Portable Forth Environment |
| PFE | Presentation Front End |
| PFE | Programmer's File Editor |
| PFF | Pupa Font Format |
| PFP | Probabilistic Functional Programming |
| PFTP | Programming Feel the Power |
| PFW | Passport For Windows |
| PFW | Platinum For Windows |
| PG | Pesa Guide |
| PGA | Programmable Gain Amplifier |
| PGC | Parametric Graphical Configuration |
| PGG | Performance Gallery Gold |
| PGI | Phoenic Graphics Interface |
| PGI | Progeny Graphical Installer |
| PGL | Pico Gui Launcher |
| PGM | Process Group Manager |