Quick Reference Guide

348 Glossary
PQFP
Abbreviation for plastic quad flat pack, a type of microprocessor socket in which
the microprocessor chip is permanently mounted.
program diskette set
The set of diskettes from which you can perform a complete installation of an
operating system or application program. When you reconfigure a program, you
often need its program diskette set.
protected mode
An operating mode supported by 80286 or higher microprocessors, protected
mode allows operating systems to implement:
• A memory address space of 16 MB to 4 GB
• Multitasking
• Virtual memory, a method for increasing addressable memory by using the hard
drive
provider
A provider is an extension of a CIM schema that communicates with managed
objects and accesses data and event notifications from a variety of sources.
Providers forward this information to the CIM Object Manager for integration
and interpretation.
PS/2
Abbreviation for Personal System/2.
PXE
Abbreviation for Pre-boot eXecution Environment.
QFP
Abbreviation for quad flat pack.
RAC
Acronym for remote access controller.
RAID
Acronym for redundant array of independent drives.