| Abbreviation | Definition |
|---|---|
| PACS | Picture Archiving and Communications System |
| PAD | Packet Assembly Disassembly |
| PAD | Picture A Day |
| PAD | Portable Application Description |
| PAE | Physical Address Extension |
| PAF | Postcode Address File |
| PAG | Paginate |
| PAH | Proprietary Application Hosting |
| PAID | Procedures Applications Infrastructure And Data |
| PAIS | Physicians Appointment Information System |
| PAIS | Prestigious Applications Of Intelligent Systems |
| PAK | Press Any Key |
| PAL | Platform Abstraction Layer |
| PAL | Playlist Automation Language |
| PAL | Pooling, Applying, and Linking |
| PAL | Privileged Architecture Library |
| PAL | Process Assets Library |
| PAL | Programmable Array Logic |
| PALET | PurpleLeap Active Learning Environment Technology |
| PALS | Personal Assistants to Learning the System |