Home > Resources > IT Abbreviations & Acronyms

IT Abbreviations & Acronyms: Comprehensive Glossary

All | # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
There are currently 148 acronyms in this directory beginning with the letter P.
P
P versus NP
Polynomial Versus Nondeterministic Polynomial
P-Ink
Photonic Ink
P&L
Profit and Loss
P2P botnet
Peer-To-Peer Botnet
P2P network
Peer-To-Peer Network
P2V
Physical to Virtual
PA-DSS
Payment Application Data Security Standard
PaaS
Platform-as-a-Service
PABX
Private Automatic Branch Exchange
PAC
Production Activity Control
PACS
Picture Archiving and Communication System
PAIR
Policy Analysis Of Internet Routing
PAL
Phase Alternation Line
Palm OS
Palm Operating System
PAM
Pulse Amplitude Modulation
PAN
Personal Area Network
PAP
Packet-Level Procedure, Password Authentication Protocol, Printer Access Protocol, or Push Access Protocol
PAR
Performance and Accountability Reporting
PARC
Palo Alto Research Center
PAT
Port Address Translation
PBD
Physical Block Device
PBT
Persistent, Bioaccumulative and Toxic
PBX
Private Branch Exchange
PC
Project Charter
PC-DOS
Personal Computer - Disk Operating System
PC100 SDRAM
Pc100 Synchronous Dynamic Random Access Memory
PCAOB
Public Company Accounting Oversight Board
PCB
Printed Circuit Board
PCE
Path Computation Element
PCEP
Path Computation Element Protocol
PCI
Peripheral Component Interconnect
PCI compliance
Payment Card Industry Compliance
PCI DSS
Payment Card Industry Data Security Standard
PCI-X
Peripheral Component Interconnect Extended
PCL
Printer Control Language
PCM
Pulse Code Modulation or Phase-Change Memory
PCMCIA
Personal Computer Memory Card International Association
PCRF
Policy and Charging Rules Function
PCS
Personal Cloud Storage or Personal Communications Service
PDA
Personal Digital Assistant
PDF
Portable Document Format
PDL
Page Description Language
PDM
Product Data Management
PDP-11
Programmed Data Processor-11
PDU
Power Distribution Unit
PEAP
Protected Extensible Authentication Protocol
PEBCAK
Problem Exists Between Chair and Keyboard
Personal VM
Personal Virtual Machine or Pvm
PERT chart
Program Evaluation Review Technique
PF
Prefetch Folder
pF/m
Picofarad Per Meter
PFC
Power Factor Correction or Power Factor Controller
PGP
Pretty Good Privacy
PHDSC
Public Health Data Standards Consortium
PHI
Personal Health Information
PHOLED
Phosphorescent organic Light-Emitting Device
PHP
Hypertext Preprocessor
PI
Principal Investigator
PIA
Privacy Impact Assessment
PIC
Port Interface Card
PICK chart
Possible, Implement, Challenge and Kill Chart
PICS
Platform For Internet Content Selection
PICTIVE
Plastic Interface For Collaborative Technology Initiatives Through Video Exploration
PID
Problem Identification Document
PIFI
Personally Identifiable Financial Information
PII
Personally Identifiable Information
PIM
Product Information Management
PIO
Programmed Input/Output
PIP
Partner Integration Process
PIR
Post-Implementation Review
PIV
Personal Identity Verification
pk-pk
Peak-To-Peak
PKCS
Public-Key Cryptography Standards
PKI
Public Key Infrastructure
PL/S
Programming Language/System
PL/SQL
Procedural Language Extension To Structured Query Language
PLATO
Programmed Logic For Automatic Teaching Operations
PLC
Packet Loss Concealment
PLEDM
Phase-State Low Electron Drive Memory
PLL
Phase-Locked Loop
PLM
Product Lifecycle Management
PLMN
Public Land Mobile Network
PM
Phase Modulation
PMI
Plus, Minus, Interesting
PML
Portal Markup Language
PMML
Predictive Model Markup Language
PMO
Project Management Office
PMP
Project Management Professional
PMS
Package Manager or Package Management System
PN
Programmable Network
pNFS
Parallel Nfs
PNG
Portable Network Graphics
PnP
Plug and Play
POC
Proof Of Concept or Packet Order Correction
pocket PC
Pocket Personal Computer
PoE
Power Over Ethernet
PoIP
Pray Over Internet Protocol
POLP
Principle Of Least Privilege
polymer LED
Light-Emitting Polymer or Polyled
POM
Production/Operations Management
PON
Passive Optical Network
POP
Point-Of-Presence
POP3
Post Office Protocol 3
Por
Power-On Reset
POS
Personal Operating Space
POS terminal
Point-Of-Sale Terminal
POSIX
Portable Operating System Interface
POST
Power-On Self-Test
POTS
Plain Old Telephone Service
PP&E
Property, Plant & Equipment
PPD
Post-Processing Deduplication or Parallel Presence Detect
PPD file
Postscript Printer Description File
PPGA
Plastic Pin Grid Array
ppi
Pixels Per Inch
PPM
Project and Portfolio Management or Pages per Minute
PPP
Point-To-Point Protocol
PPPoE
Point-To-Point Protocol Over Ethernet
PPTP
Point-To-Point Tunneling Protocol
PR
Public Relations
PRI
Primary Rate Interface
PRM
Partner Relationship Management
PRNG
Pseudo-Random Number Generator
PROM
Programmable Read-Only Memory
PRONet
Procurement Marketing and Access Network
PRS
Personal Response System
PRT
Pre-Requisite Tree
PSA
Professional Services Automation
PSK
Phase-Shift Keying
PSN
Processor Serial Number
PSOD
Purple Screen Of Death
PSS
Personal Search Syndication
PSTN
Public Switched Telephone Network
PSU
Power Supply Unit
PT
Path Traversal
PTAC
Procurement Technical Assistance Center
PTF
Program Temporary Fix
PTO
Personal Time Off
PTT
Push To Talk
PU
Physical Unit
PUE
Power Usage Effectiveness
PUP
Potentially Unwanted Program
PV Cell
Photovoltaic Cell
PV glass
Photovoltaic Glass
PVC
Permanent Virtual Circuit
PVM
Parallel Virtual Machine
PVR
Personal Video Recorder
PWS
Personal Web Server
PXE
Preboot Execution Environment

A quick reference guide for Information Technology (IT) related acronyms and abbreviations.

As a service to IT personnel everywhere (and also for ourselves) we’ve compiled a comprehensive list of IT-related acronyms and abbreviations.

Acronyms can be pronounced as words, like NASA and UNESCO; as individual letters, like FBI, TNT, and ATM; or as both letters and words, like JPEG (pronounced JAY-peg).

Abbreviations formed from a string of initials and usually pronounced as individual letters are more specifically called initialisms or alphabetisms.

No matter how you refer to these IT-related terms, please use our quick reference guide or search TechTerms.com to help decode the world of IT abbreviations and acronyms.

Featured Technology Partners

We partner with some of the best known and highest rated brands in the industry to deliver the best technology solutions for your business.