| Abbreviation | Definition |
|---|---|
| PBBO | Point Blank Bogor Online |
| PBBS | Problem Based Benchmark Suite |
| PBCC | Packet Binary Convolutional Code |
| PBD | Packet Buffer Daughter |
| PBN | Policy-Based Networking |
| PBN | Professional Business Networking |
| PBNM | Policy-Based Network Management |
| PBPS | Petabits Per Second |
| PBR | Policy-Based Routing |
| PBTR | Pull Back To Reveal |
| PBX | Private Branch Exchange |
| PC | Personal Cluster |
| PCB | Process Control Block |
| PCB | Protocol Control Block |
| PCE | Path Computation Element |
| PCI | Peripheral Component Interface |
| PCI | Personal Computer Instrumentation |
| PCI | Protocol Control Information |
| PCLAN | Personal Computer Local Area Network |
| PCLS | Probability of Clear Line of Sight |