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Technical Reference Guide www.hp.com 1-7
Introduction
NVRAM non-volatile random access memory
ODD optical disk drive
OS operating system
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
PCH Platform Controller Hub
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
RAID Redundant array of inexpensive disks (drives)
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
SATA Serial ATA
SCSI small computer system interface
Table 1-1 (Continued)
Acronyms and Abbreviations
Acronym or
Abbreviation Description