P versus NPPolynomial Versus Nondeterministic Polynomial
P2P botnetPeer-To-Peer Botnet
P2P networkPeer-To-Peer Network
PA-DSSPayment Application Data Security Standard
PaaSPlatform-as-a-Service
PABXPrivate Automatic Branch Exchange
PACProduction Activity Control
PACSPicture Archiving and Communication System
PAIRPolicy Analysis Of Internet Routing
PALPhase Alternation Line
Palm OSPalm Operating System
PAMPulse Amplitude Modulation
PAPPacket-Level Procedure, Password Authentication Protocol, Printer Access Protocol, or Push Access Protocol
PARPerformance and Accountability Reporting
PARCPalo Alto Research Center
PATPort Address Translation
PBTPersistent, Bioaccumulative and Toxic
PBXPrivate Branch Exchange
PC-DOSPersonal Computer - Disk Operating System
PC100 SDRAMPc100 Synchronous Dynamic Random Access Memory
PCAOBPublic Company Accounting Oversight Board
PCEPath Computation Element
PCEPPath Computation Element Protocol
PCIPeripheral Component Interconnect
PCI compliancePayment Card Industry Compliance
PCI DSSPayment Card Industry Data Security Standard
PCI-XPeripheral Component Interconnect Extended
PCLPrinter Control Language
PCMPulse Code Modulation or Phase-Change Memory
PCMCIAPersonal Computer Memory Card International Association
PCRFPolicy and Charging Rules Function
PCSPersonal Cloud Storage or Personal Communications Service
PDAPersonal Digital Assistant
PDFPortable Document Format
PDLPage Description Language
PDMProduct Data Management
PDP-11Programmed Data Processor-11
PDUPower Distribution Unit
PEAPProtected Extensible Authentication Protocol
PEBCAKProblem Exists Between Chair and Keyboard
Personal VMPersonal Virtual Machine or Pvm
PERT chartProgram Evaluation Review Technique
PFCPower Factor Correction or Power Factor Controller
PHDSCPublic Health Data Standards Consortium
PHIPersonal Health Information
PHOLEDPhosphorescent organic Light-Emitting Device
PHPHypertext Preprocessor
PIAPrivacy Impact Assessment
PICK chartPossible, Implement, Challenge and Kill Chart
PICSPlatform For Internet Content Selection
PICTIVEPlastic Interface For Collaborative Technology Initiatives Through Video Exploration
PIDProblem Identification Document
PIFIPersonally Identifiable Financial Information
PIIPersonally Identifiable Information
PIMProduct Information Management
PIOProgrammed Input/Output
PIPPartner Integration Process
PIRPost-Implementation Review
PIVPersonal Identity Verification
PKCSPublic-Key Cryptography Standards
PKIPublic Key Infrastructure
PL/SProgramming Language/System
PL/SQLProcedural Language Extension To Structured Query Language
PLATOProgrammed Logic For Automatic Teaching Operations
PLCPacket Loss Concealment
PLEDMPhase-State Low Electron Drive Memory
PLMProduct Lifecycle Management
PLMNPublic Land Mobile Network
PMIPlus, Minus, Interesting
PMLPortal Markup Language
PMMLPredictive Model Markup Language
PMOProject Management Office
PMPProject Management Professional
PMSPackage Manager or Package Management System
PNGPortable Network Graphics
POCProof Of Concept or Packet Order Correction
pocket PCPocket Personal Computer
PoIPPray Over Internet Protocol
POLPPrinciple Of Least Privilege
polymer LEDLight-Emitting Polymer or Polyled
POMProduction/Operations Management
PONPassive Optical Network
POP3Post Office Protocol 3
POSPersonal Operating Space
POS terminalPoint-Of-Sale Terminal
POSIXPortable Operating System Interface
POTSPlain Old Telephone Service
PP&EProperty, Plant & Equipment
PPDPost-Processing Deduplication or Parallel Presence Detect
PPD filePostscript Printer Description File
PPGAPlastic Pin Grid Array
PPMProject and Portfolio Management or Pages per Minute
PPPPoint-To-Point Protocol
PPPoEPoint-To-Point Protocol Over Ethernet
PPTPPoint-To-Point Tunneling Protocol
PRIPrimary Rate Interface
PRMPartner Relationship Management
PRNGPseudo-Random Number Generator
PROMProgrammable Read-Only Memory
PRONetProcurement Marketing and Access Network
PRSPersonal Response System
PSAProfessional Services Automation
PSNProcessor Serial Number
PSODPurple Screen Of Death
PSSPersonal Search Syndication
PSTNPublic Switched Telephone Network
PTACProcurement Technical Assistance Center
PUEPower Usage Effectiveness
PUPPotentially Unwanted Program
PV glassPhotovoltaic Glass
PVCPermanent Virtual Circuit
PVMParallel Virtual Machine
PVRPersonal Video Recorder
PXEPreboot Execution Environment