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Letter P

P-MAIL Paper Mail
P-SRAM Pseudo-Static Random Access Memory
P/T Part Time
P3P Platform for Privacy Preferences Project
PA-RISC Precision Architecture-RISC
PABX Private Automatic Branch Exchange
PAB Personal Address Book
PACE Priority Access Control Enabled
PACS-L Public Access Computer Systems List
PACS Picture Archiving and Communication System
PADS Pen Application Development System
PAD Packet Assembler/Disassembler
PAF Personal Ancestral File -- Genealogy Term see UK Genealogy Common Acronyms & Jargon for more information.
PAIH Public-Access Internet Host
PAIS Public-Access Internet Site
PALC Plasma-Addressed Liquid Crystal (display)
PALS Principles of the Alphabet Literacy System
PAL Paradox Applications Language
Phase Alternating Line
Programmed Array Logic
Programming Assembly Language
PAM Pulse Amplitude Modulation
PAN Personal Area Network
PAP Packet-level Procedure
Password Authentication Protocol
Printer Access Protocol
PARA Paragraph
PARC Palo Alto Research Center
PAR Personal Animation Recorder
PASCAL (Programming Language named for Blaise Pascal)
PATN Promotional Port Access Telephone Number
PAX Portable Archive Exchange
PBA Printed Board Assembly
PBE Prompt By Example
PBGA Plastic Ball Grid Array
PBX Private Branch Exchange
PB Petabyte (1,024 terabytes) (One Million Billion characters of information)
PC-DOS Personal Computer - Disk Operating System
PC-I/O Program Controlled I/O
PCACIAS Personal Computer Automated Calibration Interval Analysis System
PCBC Plain/Propagating Cipher Block Chaining
PCB Printed Circuit Board
Program Control Block
PCD Photo Compact Disk
PCEB PCI to EISA Bridge ]
PCIC PC-Card Interrupt Controller
PCI Peripheral Component Interconnect/Interface
PCL Printer Command Language
Process Control Language
PCL Printer Control Language
PCMA Paired Carrier Multiple Access
PCMCIA Personal Computer Memory Card International Association
PCMC PCI, Cache, Memory Controller ]
PCMIM Personal Computer Media Interface Module
PCM Personal Computer Manufacturer
Printer Cartridge Metric
Pulse Code Modulation
PCNFS Personal Computer Network File System
PCN Personal Computer Network
PCO Point of Control and Observation
PCS Patchable Control Store
Personal Communication Services/System
Personal Conferencing Specification
Planning Control Sheet
Print Contrast Signal
Process Control Systems
Program Counter Store
Project Control System
PCT Private Communications Technology
PC Personal Computer
Printed Circuit
Program Counter
PDA Personal Digital Assistant
PDC Primary Domain Controller
PDD Physical Device Driver
Portable Digital Document
PDF Package Definition File
Portable Document Format
Portable Document File
Processor Defined Function
Program Development Facility
PDH Plesiosynchronous Digital Hierarchy
PDIAL Public Dialup Internet Access List
PDL Page Description Language
Program Description Language|&|
Program Design Language
PDM Product Data Management
PDN Public Data Network
PDO Portable Distributed Objects
PDP Parallel Data Processing
Plasma Display Panel
Programmable Data Processor
(DEC Computer System Designation, i.e. PDP-8, PDP-11)
PDSS Post Development and Software Support
PDS Packet Driver Specification
Partitioned Data Set
Planetary Data System
Portable Document Software
Processor Direct Slot
PDT Pacific Daylight Time
Performance Diagnostic Tool
Programmable Drive Table
PDU Plug Distribution Unit
Protocol Data Unit
PD Phase-Change Dual
Public Domain
PEA Pocket Ethernet Adapter
PEBCAK Problem Exists Between Chair And Keyboard
PEL Picture Element
PEM Privacy-Enhanced Mail
PEN SDK Pen Computing Software Development Kit
PENTIUM Produces Erroneous Numbers Through Incorrect understanding of Math
PEP Packet Exchange Protocol
Packetized Ensemble Protocol
PERC Power Edge RAID Controller
PERL Practical Extraction and Report Language
PERT Program Evaluation and Review Technique
PES Positioning Error Signal
Processor Enhancement Socket Processor Upgrade Socket
PET Print Enhancement Technology
PE Parity Even
Processing Element
Protect Enable
PFE Programmer's File Editor
PFR Power-Fail Restart
PGA Pin Grid Array
Professional Graphics Adapter
PGC Program Group Control
PGDN Page Down
PGML Precision Graphics Markup Language
PGM Program
PGP Pretty Good Privacy (name of encryption program)
PGUP Page Up
PHIGS Programmers' Hierarchical Interactive Graphics Standards
PHS Personal Handyphone System
PIA Peripheral Interface Adapter
PICS Platform for Internet Content Selection
PICT Picture
PIC Personal Information Carrier
Personal Intelligent Communicator
Platform for Internet Content
Priority Interrupt Controller
Program Interrupt Controller
PID Process Identification Number
Product ID
Proportional, Integral, Derivative
PIER Procedures for Internet/Enterprise Renumbering
PIF Picture Interchange Format File
Program Information File
PII Program Integrated Information
PilotACE* Pilot Automatic Computing Engine
PILOT Programmed Inquiry Learning Or Teaching
PIM Personal Information Manager
Primary Interface Module
Protocol-Independent Multicast
PINE Pine Is Not Elm (original usage)
Program for Internet News & Email (present usage)
PING Packet Internet Groper
PIN Personal Identification Number
Process Identification Number
PIO Parallel Input/Output
Processor Input/Output
Programmed Input/Output
PIPO Parallel In, Parallel Out
PIP Pattern and Information Processing
Picture In Picture
Problem Isolation Procedure
Programmable Interconnect Point
PIR Protocol Independent Routing
PIT Programmable Interval Timer
PIXEL Picture Element
PI Program Interruption
PL/1 * Programming Language One
PL/M Programming Language for Micros
PLATO Programmed Logic for Automatic Teaching Operations
PLA Programmable Logic-Array
PLCC Plastic Leadless Chip Carrier
PLC Programmable Logic Controller
PLDS Pilot Land Data System
PLD Programmable Logic Device
PLL Phase Locked Loop
PLS Please
PLS Primary Link Station
PLV Production Level Video
PL Plus
PMD Packet Mode Data
PMFJI Pardon Me For Jumping In
PMMU Paged Memory Management Unit
PMOS Positive Channel Metal Oxide Semiconductor
PMR Problem Management Report
PMS Policy Management System
PM Presentation Manager
Preventative Maintenance
Process Manager
PNA Programmable Network Access
PNG Portable Network Graphics
PNNI Private Network to Network Interface
PnP Plug and Play
PNP Plug And Play
PN Processing Node
POC Point Of Contact
POD Plain Old Dos
POE Power Open Environment
POH Power-On Hours
POL Problem Oriented Language
POPA Pop All Registers
POPF Pop Flags
POP Point Of Presence
Pop from Stack
Post Office Protocol
POR Power-On-Reset
POSIX Portable Operating System Interface for Unix
POSTNET Postal Numeric Encoding Technique (bar code)
POST Power-On Self Test
POS Point Of Sale
Programmable Object Select
POTS Plain Old Telephone Service
POV Point of View
PowerPC Performance Optimization with Enhanced RISC-Performance Computing
POWER Performance Optimization with Enhanced RISC
PO Parity Odd
PPA Pixel Processing Accelerator
PPDS Personal Printer Data Stream
PPGA Plastic Pin Grid Array
PPI Precise Pixel Interpolation
PPM Pages Per Minute
PPP Point-to-Point Protocol
PPS Packets Per Second
Power Personal Systems
PPTP Point-to-Point Tunneling Protocol
PP Parallel Port
PQFP Plastic Quad Flat Pack
PRACSA Public Remote Access Computer Standards Association
PRAM Parallel Random-Access Machine
Parameter Random Access Memory
PReP Power PC Reference Platform
PRE Preformatted
PRF Pulse Repetition Frequency
PRINTF Print with Formatting
PRISM Photo-Refractive Information Storage Material
PRI Primary-Rate Interface
PRMD Private Management Domain
PRML Partial-Response Maximum-Likelihood
PRN Printer
PROC Procedure
PROFS Professional Office System
PROG Program
PROLOG Programming In Logic (Programming Language)(See HLL)
PROM Programmable Read Only Memory
PRO The Public Record Office -- Genealogy Term see UK Genealogy Common Acronyms & Jargon for more information.
PRTSC Print Screen
PS/2 Programming System 2
PSAPI Presentation Space Application Programming Interface
PSC Personal Super Computer
Print Server Command
Product Service Center
PSDN Packet-Switched Data Network
PSDS Packet-Switched Data Service
PSERVER Print Server
PSF Permanent Swap File
PSID PostScript Image Data
PSINET (formerly Performance Systems International)
PSM Printing Systems Manager
PSN Packet Switching Network
PSPDN Packet-Switched Public Data Network
PSP Personal Software Products (group)
Program Segment Prefix
PSRT PostScript Round Table
PSTN Public Switched Telephone Network
PST Pacific Standard Time
Pakistan Standard Time
PSU Power Supply Unit
PSW Program Status Word
PS Proportional Spacing
PTD Parallel Transfer Disk Drive
PTF Problem Temporary/Trouble Fix
PTI Packet Type Identifier
PTT Postal Telephone & Telegraph
PT Page Table
PUB Public (directory)
PUN Physical Unit Number
PUP PARC Universal Packet (protocol)
PUSHA Push All Registers
PUSHF Push Flags
PUS Processor Upgrade Socket
PVC Permanent Virtual Circuit
Polyvinyl Chloride
PVM Parallel Virtual Machine
Pass-through Virtual Machine (protocol)
PVP Parallel Vector Processing
PVS Parallel Visualization Server
PWB Printed Wire Board
Programmer's Workbench
PWD Present Working Directory or Print Working Directory (A Unix Command)
PWR Power
PWSCS Programmable Workstation Communication Services
PW Password