Abbreviations (P)

  Abbreviations (P)

Abbreviations.	Meaning
PAL	Phase Alternation Line (Color-TV)
PAP	Privileged Access Password
PAS	Pro Audio Spectrum
PBX	Private branch exchange (phone/modem-line)
PFA	Predictive Failure Analysis (e.g. RAID Controller) see also SMART
PB SRAM	Pipelined Burst Static RAM
	for BUS speed up to 133 MHz (4.5 versus 8ns addr./data
	fastest with a BUS speed of 75MHz or above.
PC	Personal Computer
PCA	Program Calibration Area (CD-R area -> for calibrate laser enery)
PC AT	Personal Computer Advanced Technology
PC XT	Personal Computer eXtended Technology
PCI Bus	Peripheral Component Interconnect
	(32-Bit at 30 MHz)
PCMCIA	Personal Computer Memory Card International Association
PCX	Picture Exchange (graphic format)
PECL	Positive Emitter Coupled Logic (e.g. Fibre channel)
PEL	Picture Element. (See pixel) also used for Permit Exposure Limit
PI	Port In (e.g. 8230 Port In line/address)
PIF	Product Information File
PIO	Programmable Input Output. A means of data transfer that
	requires the use of the host processor.
PIO mode	Programmed I/O mode (BIOS - used for define IDE/EIDE speed)
	PIO mode 0 (ATA) up to 3.3 MB/sec
	PIO mode 1 (ATA) up to 5.2 MB/sec
	PIO mode 2 (ATA) up to 8.3 MB/sec (IDE)
	PIO mode 3 (ATA-2) up to 11.1 MB/sec (EIDE)
	PIO mode 4 (ATA-2) up to 16.6 MB/sec (EIDE)
	PIO mode 5 more than 16.6 MB/sec (EIDE)
pixel	Picture Element. The minimum item that can be displayed
	on a video display.
PM	Presentation Manager (OS/2)
PMA	Program Memory Area (CD-R area -> track numbers)
PnP	Plug&Play BIOS
P&D-D	digital Plug&Display-Interface (see TMDS)
P&D-D/A	digital and analog Plug&Display-Interface (se TMDS)
PO	Port Out (e.g. 8230 Port Out line/address)
POH	Power-on-hours
POS	Programmable Option Select
POST	Power-On Selftest
PPP	Point-to-Point Protocol (Internet)
PROM	Programmable Read Only Memory
PSM	Product Specific Module
PSTN	Public Switched Telephon Network
PS/VP	PS/ValuePoint
PxBLT	Pixel Block Transfer
PUN	Physical Unit Number (as in SCSI)