Glossary P

P II = Intel Pentium II CPU (80686 Klamath/Deschutes Xeon + Celeron).
P III = Intel Pentium III CPU (80686 Katmai/Coppermine/Tualatin Xeon + Celeron).
P IV = Intel Pentium IV CPU (80686 Willamette/Northwood Xeon + Celeron).
P3P = Platform for Privacy Preferences (W3C).
P5 = Intel Pentium/Pro CPU (80586).
P6 = Intel Pentium II/III/IV CPU (80686).
PAE = Physical Address Extensions (Intel 8XX chipsets with > 4 GB RAM).
PAL = Phase Alternate Line (European TV standard: 625 lines).
Panose = Typeface font matching system (Hewlett Packard).
PAP = Password Authentication Protocol.
PAT (1) = Port Address Translation (network/Internet IP address).
PAT (2) = Performance Acceleration Technology (Intel 865/875 Pentium IV chipsets).
PBC = Pipeline Burst Cache.
PBM = Portable BitMap UNIX picture file.
PBSRAM = Pipeline Burst Static Random Access Memory (Intel CPU L2 cache).
PC = Personal Computer (a.k.a. IBM PC/AT clone).
PC99 = PC 1999 System Design Guide (Intel/Microsoft).
PCAV = Progressive Constant Angular Velocity (Compact Disk).
PCB = Printed Circuit Board.
PCD = Kodak Photo CD image file.
PCI = Peripheral Component Interconnect bus architecture: 32-bit 33/66 MHz (Intel).
PCI 2.1 = Peripheral Component Interconnect 2.1 standard: 32-bit 33/66 MHz (Intel).
PCI 2.2 = Peripheral Component Interconnect 2.2 standard: 32-bit 33/66/133 MHz (Intel).
PCI 3.0 = Peripheral Component Interconnect 3.0 standard (3GIO or PCI Express): 64-bit 133/266 MHz 6.6 GB/sec (Intel/IBM/Compaq/Microsoft/Dell).
PCI Express = Peripheral Component Interconnect Express standard (3GIO or PCI 3.0): 64-bit 133/266 MHz 6.6 GB/sec (Intel/IBM/Compaq/Microsoft/Dell). Also PCIe.
PCI-X = Peripheral Component Interconnect eXtended bus architecture: 64-bit 133 MHz 6 GB/sec (Intel/Compaq/Hewlett Packard/IBM).
PCI-X 2.0 = Peripheral Component Interconnect eXtended bus architecture: 64-bit 266/533 MHz 12/24 GB/sec (Intel/Compaq/Hewlett Packard/IBM).
PCIe = Peripheral Component Interconnect Express standard (3GIO or PCI 3.0): 64-bit 133/266 MHz 6.6 GB/sec (Intel/IBM/Compaq/Microsoft/Dell). Also PCI Express.
PCL = Printer Control Language.
PCM = Pulse Code Modulation.
PCMCIA = Personal Computer Memory Card International Association.
PCS = Personal Communications Service.
PCX (1) = Zsoft PC Paintbrush Picture file.
PCX (2) = 3GIO or PCI Express or PCIe (see above).
PDA = Personal Digital Assistant.
PDF = Portable Document Format file (Adobe Acrobat).
PDP = Parallel Data Processing (Intel I-740).
pel = Picture ELement: RGB 3 dot pattern (color TV). Also pixel.
Pentium = Intel Pentium CPU (80586).
Pentium Pro = Intel Pentium Pro CPU (80586).
Pentium II = Intel Pentium II CPU (80686 Klamath/Deschutes Xeon + Celeron).
Pentium III = Intel Pentium III CPU (80686 Katmai/Coppermine/Tualatin Xeon + Celeron).
Pentium IV = Intel Pentium IV CPU (80686 Willamette/Northwood Xeon + Celeron).
PERL = Practical Extraction and Report Language (programming).
PFPT = Pure Flat Picture Tube.
PGM = Portable GrayMap UNIX picture file.
PGP = Pretty Good Privacy (encryption scheme).
PHP = Hypertext PreProcessor open source scripting HTML language (dynamic, server based).
PIC (1) = Programmable Interrupt Controller.
PIC (2) = Lotus PICtor/PC Paint picture file.
PID = Product IDentification number (Microsoft OS + software).
PIF = Program Information File (Microsoft Windows).
PIM = Personal Information Manager.
PIMA = Photographic and Imaging Manufacturers Association (now I3A).
PING = Improperly called Packet InterNet Groper (network/Internet packet transmitting/receiving tool).
PIO = Programmed Input/Output.
pixel = PIcture ELement: RGB 3 dot pattern (color CRT). Also pel.
PLC = Power Line Communications standard (networking/Internet broadband).
PLEDM = Phase-state Low Electron Drive Memory (Hitachi).
PLGA = Plastic Land Grid Array (Intel Pentium II CPU).
PLL = Phase Locked Loop (CPU clock multiplier chip).
PMTU = Path Maximum Transmission Unit (Internet protocol).
PNG = Portable Network Graphics file.
PNI = Prescott New Instructions (Intel Prescott CPU 13 instructions).
PnP = Plug and Play standard.
POP (1) = Post Office Protocol (e-mail exchange standard).
PoP (2) = Point of Presence.
POP3 = Post Office Protocol version 3 (e-mail exchange standard).
POST = Power On Self Test (BIOS).
POTS = Plain Old Telephone Service.
PPGA = Plastic Pin Grid Array (370 pin Intel Pentium II CPU).
PPI = Precise Pixel Interpolation (Intel I-740 2D/3D chipset).
PPM = Portable PixelMap picture file (UNIX).
PPP = Point to Point Protocol.
PPTP = Point to Point Tunneling Protocol.
PRI = Primary Rate Interface.
PRML = Partial Response Maximum Likelihood (IBM Hard Disk Drive standard).
PRN = PRiNter port.
PS = Personal Server (Intel future portable computer standard).
PS/2 = IBM Personal System/2 computer.
PSD = RGB indexed PhotoShop image file (Aldus).
PSTN = Public Switched Telephone Network.
PVR = Personal Video Recorder (TV analog to digital).