Dell OptiPlex GX50 User Manual page 268

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PGA
Pin grid array. A type of socket for a computer chip. The PGA socket has all
its pins lined up in even rows, as opposed to the
rows staggered.
Pipeline Processing
A method of processing in which a task is performed in stages: the output of
one stage is input to the next stage.This method speeds up processing by
allowing several parts of multiple tasks to be run simultaneously.
PIO
Programmed input/output. A method of moving data between devices in a
computer in which all data passes through the microprocessor. The most
recent ATA/IDE standard specifies higher data transfer rates, mode 3 at 11.1
MBps and mode 4 at 16.6 MBps. A recent alternative to PIO is DMA.
Plug and Play
Often referred to as Plug-n-Play or PnP. A technology that can automatically
configure devices at start-up to use or share certain IRQs. For this to work
properly the computer's BIOS
being configured must also be PnP-compliant.
compliant.
PME
Power management event. An event that causes a computer to be remotely
started, such as Remote Wake Up
PnP
See Plug and Play.
Port
A socket or plug on your computer that allows you to attach an external
by connecting its cable. See also
POST
Power-on self-test. Diagnostic programs, loaded automatically by the
during start-up, that perform basic tests on the major computer components,
such as RAM, the hard drives, the keyboard, video, and so on. If there are no
problems during the POST, the computer continues the start-up and loads
the OS.
Product ID
Also referred to as Product
SPGA
and OS must both support PnP, and all devices
PCI devices are PnP-
(WOL) or WOR.
P and Serial Port.
Key. See COA.
socket, which has its
device
BIOS