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P Acronyms

Acronyms that start with Letter P


Acronym Meaning / Link
P3P Privacy Preferences Project
PABX Private Automatic Branch eXchange
PAD Packet Assembler / Disassembler
PAL Phase Alternating Line system (European color TV standard)
PAL Programmable Array Logic (customizable chip, also know as a gat array) or Paradox Application language
PAM Pluggable Authentication Module or Proactive Automated Management 
PANS Pretty Advanced Network Services
PAP Password Authentication Protocol
PARC Palo Alto Research Center - (Xerox PARC)
PAW Physics Analysis Workbench
PAX Private Automatic eXchange
PB Petabyte - 1,024 TB - 1,048,576 GB
PBMS Pacific Bell Mobile Services
PBS Portable Base Station
PBX Private Branch Exchange
PC Personal computer or Printed Circuit
PCA Performance and Coverage Analyzer
PCB Printed circuit board
PCDOS Personal Computer Disk Operating System
PCI Personal Computer Interconnect or Peripheral Component Interconnect
PCM Pulse Code Modulation
PCMCIA Personal Computer Memory Card International Association or People Can't Memorise Computer Industry Acronyms
PCS Personal Communication Services or System or Proxy Cache Server
PCX (raster graphics format for PC Paintbrush)
PD Phase-Change - Dual or Public Domain
PDA Personal Digital Assistant
PDC Primary Domain Controller
PDF Portable Document Format as in .PDF files in Adobe Acrobat
PDN Public Data Network or Packet Data Network
PDP Program Data Processor
PDQ Peachtree Data Query
PDL Page-description language or Program Design Language
PDS Processor Direct Slot or Partitioned Data Set or Premise Distribution System
PDX Printer Description Extension or Phone Data eXchange
PE Printer's error or Phase Encoded
PEBKAC Problem Exists Between Keyboard And Chair (tech jargon for user is the problem).
PEM Product Error Message or Privacy Enhanced Mail
PF Program Function
PGA Professional graphics adapter (video display standard) or Pin-Grid Array
PGP Pretty Good Privacy
pH Potential of hydrogen (measure of acidity/alkalinity) or Parallel Haskell
PHIGS Programmers Hierarchical Interactive Graphics Standard (language for creating 2-D and 3-D graphic images)
PIC Preferred/Primary InterExchange Carrier or Programmable Interrupt Controller
PICNIC Problem In Chair Not In Computer (tech jargon for user is the problem)
PICT As in picture (Macintosh file format for graphics)
PIF Program Information File
PIG Product Information Guide
PIM Personal Information Manager or Product Information Management
PIN Personal Identification Number
PING Packet INternet Groper/gopher
PIO Programmed Input / Output
PIXEL Picture Element
PKI Public Key Infrastructure
PLCC Plastic Leaded-Chip Carrier
PLE Public Local Exchange
PLL Phase Locked Loop
PLP Packet Level Procedure
PMBS Personalized Mobile Broadband Services
PMMU Paged memory management unit
PMS Pantone Matching System also, well... you know.
PMT Photomechanical Transfer (photostat) or Photomultiplier Tube
PNA Programmatic Network Administrator or (Home) Phoneline Networking Alliance
PnP Plug and Play
PNAMBIC Pay No Attention to the Man Behind the Curtain
POA Power Open Association
POH Power On Hours
POI Points Of Interest (pdf link)
POMS Persistent Object Management System
PON Passive Optical Network
POP Point Of Presence or Post Office Protocol
POP3 Post Office Protocol 3
POPP Premises Optical Patch Panel
POS Programmable Option Select
POST Power On - Self Test
POTS Plain Old Telephone Service or (old) Post Office Telephone Service or System
PPD PostScript Printer Description (includes APDs and PDXs)
ppi Pixels per inch
PPI Programmable Peripheral Interface
PPN Project-Programmer Number
PPP Point-To-Point Protocol
PPS Pulses Per Second
PPTP Point to Point Tunneling Protocol
PQFP Plastic Quad Flat Pack
PR PageRank (for Search Engines)
PRAM Parallel Random Access Machine
PRI Primary Rate Interface ISDN connection
PRIMOS Prime Operating System
PRML Partial Response - Maximum Likelihood


Pseudo-Random Number Generators when producing ISNs used in TCP connections

PRO As in .pro - PROfessional web site  (See our list of TLDs here)
PROFS Professional Office System
PROM Programmable read-only memory
PS Physical Sequential or Programmed Symbols or PostScript or Programmable Switching
PS/2 Personal System / 2
PSAP Public Safety Answering Point  (911 call center)
PSDN Packet Switched Data Network
PSF Packet switch facility. (ISDN)
PSS Packet Switch Streaming, Packet Switched Service, Packet Switching System
PSTN Public Switched Telephone Network
PTT Post Telephone & Telegraph
PU Physical Unit
PUN Physical Unit Number
PUP PARC Universal Packet
PVC Permanent Virtual Circuit
PVM Parellel Virtual Machine
PWS Peer Web Services
PYTHON Python Programming Language
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