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Technical Reference Guide www.hp.com 1-7
Introduction
PAL 1. programmable array logic 2. phase alternating line
PATA Parallel ATA
PC Personal computer
PCA Printed circuit assembly
PCI peripheral component interconnect
PCI-E PCI Express
PCM pulse code modulation
PCMCIA Personal Computer Memory Card International Association
PEG PCI express graphics
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
PWM pulse width modulation
RAID Redundant array of inexpensive disks (drives)
RAM random access memory
RAS row address strobe
RBSU ROM-Based Setup Utility
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
SATA Serial ATA
SCSI small computer system interface
SDR Singles data rate (memory)
SDRAM Synchronous Dynamic RAM
Table 1-1 (Continued)
Acronyms and Abbreviations
Acronym or
Abbreviation Description