Dell PowerEdge R510, Hardware Owner'S Manual

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Glossary
IRQ — Interrupt request. A signal that data is about to be sent to or received by a
peripheral device travels by an IRQ line to the processor. Each peripheral connection
must be assigned an IRQ number. Two devices can share the same IRQ assignment,
but you cannot operate both devices simultaneously.
iSCSI — Internet SCSI (see SCSI ). A protocol that enables SCSI device
communication across a network or the Internet.
jumper — Small blocks on a circuit board with two or more pins emerging from them.
Plastic plugs containing a wire fit down over the pins. The wire connects the pins
and creates a circuit, providing a simple and reversible method of changing the
circuitry in a board.
K — Kilo-; 1000.
Kb — Kilobit(s); 1024 bits.
KB — Kilobyte(s); 1024 bytes.
Kbps — Kilobit(s) per second.
KBps — Kilobyte(s) per second.
kg — Kilogram(s); 1000 grams.
kHz — Kilohertz.
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.
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.
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 .
LOM — LAN on motherboard.
LVD — Low voltage differential.
m — Meter(s).
mA — Milliampere(s).
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