P
- P2P—Peer-To-Peer
- PAC—Programmable Automation Controller
- PAN—Personal Area Network
- PAP—Password Authentication Protocol
- PARC—Palo Alto Research Center
- PATA—Parallel ATA
- PC—Personal Computer
- PCB—Printed Circuit Board
- PCB—Process Control Block
- PC DOS—Personal Computer Disk Operating System
- PCI—Peripheral Component Interconnect
- PCIe—PCI Express
- PCL—Printer Command Language
- PCMCIA—Personal Computer Memory Card International Association
- PCM—Pulse-Code Modulation
- PCRE—Perl Compatible Regular Expressions
- PD—Public Domain
- PDA—Personal Digital Assistant
- PDF—Portable Document Format
- PDH—Plesiochronous Digital Hierarchy
- PDP—Programmed Data Processor
- PE—Physical Extents
- PERL—Practical Extraction and Reporting Language
- PGA—Pin Grid Array
- PGO—Profile-Guided Optimization
- PGP—Pretty Good Privacy
- PHP—PHP: Hypertext Preprocessor
- PIC—Peripheral Interface Controller
- PIC—Programmable Interrupt Controller
- PID—Proportional-Integral-Derivative
- PID—Process ID
- PIM—Personal Information Manager
- PINE—Program for Internet News and Email
- PIO—Programmed Input/Output
- PKCS—Public Key Cryptography Standards
- PKI—Public Key Infrastructure
- PLC—Power Line Communication
- PLC—Programmable Logic Controller
- PLD—Programmable Logic Device
- PL/I—Programming Language One
- PL/M—Programming Language for Microcomputers
- PL/P—Programming Language for Prime
- PLT—Power Line Telecoms
- PMM—POST Memory Manager
- PNG—Portable Network Graphics
- PnP—Plug-and-Play
- PoE—Power over Ethernet
- POID—Persistent Object Identifier
- POJO—Plain Old Java Object
- POP—Point of Presence
- POP3—Post Office Protocol v3
- POSIX—Portable Operating System Interface
- POST—Power-On Self Test
- PPC—PowerPC
- PPI—Pixels Per Inch
- PPP—Point-to-Point Protocol
- PPPoA—PPP over ATM
- PPPoE—PPP over Ethernet
- PPTP—Point-to-Point Tunneling Protocol
- PS—PostScript
- PSA—Professional Services Automation
- PS/2—Personal System/2
- PSU—Power Supply Unit
- PSVI—Post-Schema-Validation Infoset
- PTS-DOS—PhysTechSoft - Disk Operating System
- PV—Physical Volume
- PVG—Physical Volume Group
- PVR—Personal Video Recorder
- PXE—Preboot Execution Environment
- PXI—PCI eXtensions for Instrumentation
Read more about this topic: List Of Computing And IT Abbreviations