P
- P2P – Peer to Peer - Intenet
- PAE – Physical Address Extension - Speicher, Windows
- PAT – Port Address Translation - Netzwerk
- PCB – Printed Circuit Board - Elektronik
- PCI – Periphal Component Interconnect - Mainboard
- PCMCIA – Personal Computer Memory Card International Association - Laptop
- PFC – Power Factor Correction - Netzteil
- PGA – Pin Grid Array; Programmable Gate Array - Elektronik
- PHP – Personal Homepage Toos - Internet
- PIO – Programmierter I/O (E/A) - Mainboard
- PLA – Programmable Logic Array - Elektronik
- PM – Phase Modulation; Pulse Modulation - Elektronik
- PnP – Plug and Play - Windows
- PoE – Power over Ethernet - Netzwerk
- POST – Power-On Self Test - Mainboard
- PPP – Point-to-Point-Protocol - Internet
- PPPoE – PPP over Ethernet - Internet
- PSK – Preshared Key - Netzwerk
- PWM – Pulse Wide Modulation - Mainboard, Elektronik