| Abbreviation | Definition |
|---|---|
| PE | Print Environment |
| PE | Project Entropia |
| PE | Protection Enabled |
| PEARL | Process And Experiment Automation Realtime Language |
| PEARL | Processor and Experiment Automation Realtime Language |
| PEARL | Pulse Enhancement Artefact Rejection Logic |
| PEBKAC | Problem Exists Between Keyboard And Chair |
| PECL | PEAR EXTENDED C Library |
| PEI | Pix Extended Image |
| PEK | Peripheral Evaluation Kit |
| PEM | Physical Electronic Mail |
| PEM | Privacy Enhanced Mail |
| PEP | Partitioned Emulation Program |
| PER | Program Event Recording |
| PERA | Purdue Enterprise Reference Architecture |
| PERC | Power Edge Raid Controller |
| PERL | Practical Extraction and Report Language |
| PES | Programmable Electronic System |
| PET | Pattern Editing Toolkit |
| PET | Performance Evaluation Tool |