| Abbreviation | Definition |
|---|---|
| PLO | Please Leave On |
| PM | Peg Material |
| PM | Performance Monitor |
| PM | Physical Machine |
| PM | Physical Memory |
| PMA | Physical Media Attachment |
| PMA | Pressurized Mating Adapter |
| PMBR | PIM (Protocol Independent Multicast) Multicast Border Router |
| PMC | PCI (Peripheral Component Interface) Mezzanine Card |
| PMC | Peripheral Management Controller |
| PMPO | Peak Music Power Output |
| PMR | Perpendicular Magnetic Recording |
| PMS | Power Monitoring System |
| PMS | Processor-Memory-Switch |
| PMU | Power Management Unit |
| PNA | Personal Navigation Assistant |
| PND | Personal Navigation Device |
| PNP | Positive-Negative-Positive |
| PNPN | Positive-Negative-Positive-Negative |
| POD | Pool Of Devices |