Dell POWER EDGE 2900, Hardware Owner'S Manual

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Glossary
KB — Kilobyte(s); 1024 bytes.
Kbps — Kilobit(s) per second.
KBps — Kilobyte(s) per second.
key combination — A command requiring you to press
multiple keys at the same time (for example,
<Ctrl><Alt><Del>).
kg — Kilogram(s); 1000 grams.
kHz — Kilohertz.
KMM — Keyboard/monitor/mouse.
KVM — Keyboard/video/mouse. KVM refers to a switch
that allows selection of the system from which the video
is displayed and for which the keyboard and mouse are
used.
LAN — Local area network. A LAN is usually confined to
the same building or a few nearby buildings, with all
equipment linked by wiring dedicated specifically to the
LAN.
lb — Pound(s).
LCD — Liquid crystal display.
LED — Light-emitting diode. An electronic device that
lights up when a current is passed through it.
LGA — Land grid array. A type of microprocessor socket.
Unlike the PGA, the LGA interface has no pins on the
chip; instead, the chip has pads that contact pins on the
system board.
Linux — A UNIX-like operating system that runs on a
variety of hardware systems. Linux is open source
software, which is freely available; however, the full
distribution of Linux along with technical support and
training are available for a fee from vendors such as
Red Hat Software.
local bus — On a system with local-bus expansion
capability, certain peripheral devices (such as the video
adapter circuitry) can be designed to run much faster than
they would with a traditional expansion bus. See also
bus .
LVD — Low voltage differential.
m — Meter(s).
mA — Milliampere(s).
MAC address — Media Access Control address. Your
system’s unique hardware number on a network.
mAh — Milliampere-hour(s).
Mb — Megabit(s); 1,048,576 bits.
MB — Megabyte(s); 1,048,576 bytes. However, when
referring to hard-drive capacity, the term is often rounded
to mean 1,000,000 bytes.
Mbps — Megabits per second.
MBps — Megabytes per second.
MBR — Master boot record.
memory address — A specific location, usually expressed
as a hexadecimal number, in the system’s RAM.
memory module — A small circuit board containing
DRAM chips that connects to the system board.
memory — An area in your system that stores basic system
data. A system can contain several different forms of
memory, such as integrated memory (ROM and RAM)
and add-in memory modules (DIMMs).
MHz — Megahertz.
mirroring — A type of data redundancy in which a set of
physical drives stores data and one or more sets of
additional drives stores duplicate copies of the data.
Mirroring functionality is provided by software. See also
guarding , integrated mirroring , striping , and RAID .
mm — Millimeter(s).
ms — Millisecond(s).
MS-DOS
®
— Microsoft Disk Operating System.
NAS — Network Attached Storage. NAS is one of the
concepts used for implementing shared storage on a
network. NAS systems have their own operating systems,
integrated hardware, and software that are optimized to
serve specific storage needs.
NIC — Network interface controller. A device that is
installed or integrated in a system to allow connection to a
network.
NMI — Nonmaskable interrupt. A device sends an NMI
to signal the processor about hardware errors.
ns — Nanosecond(s).