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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
SPGA
socket, which has its
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
and
OS
must both support PnP, and all devices
being configured must also be PnP-compliant.
PCI
devices are PnP-
compliant.
PME
Power management event
. An event that causes a computer to be remotely
started, such as
Remote Wake Up
(
WOL
) or
WOR
.
PnP
See
Plug and Play
.
Port
A socket or plug on your computer that allows you to attach an external
device
by connecting its cable. See also
P
and
Serial Port
.
POST
Power-on self-test
. Diagnostic programs, loaded automatically by the
BIOS
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 Key
. See
COA
.
Summary of Contents for OptiPlex GX50
Page 1: ...w w w d e l l c o m s u p p o r t d e l l c o m Dell OptiPlex GX50 Systems User s Guide ...
Page 10: ...x Contents ...
Page 40: ...38 Abo u t You r C o mp u t er w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 113: ...Installing Upgrades 111 1 Floppy drive cable 2 Lever 1 2 ...
Page 117: ...Installing Upgrades 115 S ma l l D es k t op C om p u te r Small Mini Tow er Comput er ...
Page 136: ...134 Ins ta l l i n g Up g r a d es w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 154: ...152 Microsoft Windows XP Features w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 162: ...160 Te c h n ic a l Sp e c if ic a tio n s w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 210: ...208 So lv ing Pr o ble m s w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 232: ...230 Ge tt ing Help w w w d e l l c o m s u p p o r t d e l l c o m ...