User's Manual

162 Glossary
PERC
Acronym for PowerEdge™ Expandable RAID controller.
peripheral device
An internal or external device—such as a printer, a disk drive, or a keyboard—
connected to a system.
Plug and Play
An industry-standard specification that makes it easier to add hardware devices
to personal computers. Plug and Play provides automatic installation and
configuration, compatibility with existing hardware, and dynamic support of
mobile computing environments.
POST
Acronym for power-on self-test. Before the operating system loads when you turn
on your system, the POST tests various system components such as RAM, the
disk drives, and the keyboard.
PPP
Short for Point-to-Point Protocol, it is a method of connecting a computer to the
Internet.
pre-operating system environment
A shell environment, such as DOS, used to configure system hardware before a
major operating system, such as Microsoft Windows or Linux, is installed.
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.
PXE
Abbreviation for Pre-boot eXecution Environment.
RAC
Acronym for remote access controller.
RAID
Acronym for Redundant Array of Independent Disks.