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176 Glossary
KB — Kilobyte(s); 1024 bytes.
K
BPS — Kilobit(s) per second.
KB
PS — 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 processor 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.
L
INUX — 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.