| Abbreviation | Definition |
|---|---|
| PAI | Process After Input |
| PAIP | Paradigms of Artificial Intelligence Programming |
| PAK | Process Automation Komponent |
| PAL | Palmtop Application Library |
| PAL | Pedagogical Array Language |
| PAMS | Parenting Assessment Manual Software |
| PAN | Priority Application Number |
| PAN | Programming Assignment N |
| PANA | Plain ANalog loop Alarm circuit |
| PANAM | Parametric Aircraft Noise Analysis Module |
| PAP | Personal Assistant Program |
| PAPI | Performance Application Programming Interface |
| PAPI | Printing Application Programming Interface |
| PAPL | Programming and Programming Languages |
| PAPT | Pilipinas Anti-Piracy Team |
| PARIS | Prediction And Reporting Interactive Software |
| PARTS | Programmable And Reconfigurable Tool Set |
| PASC | Precision Adaptive Sub band Coding |
| PASCAL | Programming language named for 17th century mathematician Blaise Pascal |
| PASD | Performance aware software development |