Compaq W4000 Pfc, Pin, Pio, Post, Prom, Ptr, Ram, Ras, Rdram, Rgb, Rms, Rom, Rpm, Rtc, Scsi, Sdr

Technical Reference Guide

Table 1-1.Acronyms and Abbreviations Continued

Acronym/Abbreviation	Description
PFC	Power factor correction
PIN	personal identification number
PIO	Programmed I/O
PN	Part number
POST	power-on self test
PROM	programmable read-only memory
PTR	pointer
RAM	random access memory
RAS	row address strobe
rcvr	receiver
RDRAM	(Direct) Rambus DRAM
RGB	red/green/blue (monitor input)
RH	Relative humidity
RMS	root mean square
ROM	read-only memory
RPM	revolutions per minute
RTC	real time clock
R/W	Read/Write
SCSI	small computer system interface
SDR	Singles data rate (memory)
SDRAM	Synchronous Dynamic RAM
SEC	Single Edge-Connector
SECAM	sequential colour avec memoire (sequential color with memory)
SF	sign flag
SGRAM	Synchronous Graphics RAM
SIMD	Single instruction multiple data
SIMM	single in-line memory module
SMART	Self Monitor Analysis Report Technology
SMI	system management interrupt
SMM	system management mode
SMRAM	system management RAM
SPD	serial presence detect
SPDIF	Sony/Philips Digital Interface (IEC-958 specification)
SPN	Spare part number
SPP	standard parallel port
SRAM	static RAM
SSE	Streaming SIMD extensions
STN	super twist pneumatic
SVGA	super VGA
SW	software

Continued

Compaq Evo and Workstation Personal Computers 1-7

Featuring the Intel Pentium 4 Processor

Second Edition – January 2003