IT DICTIONARY POCKET

41 KWH KiloWatt A measure of the
Hour amount of watts of
energy used. Electricity
42 kW kilowatt is measured in units of
power called watts.

A unit of electrical power,
equal to 1,000 watts.

43 KYC Know Your a broad variety of
Customer products designed to
help companies avoid
initiating or maintaining
commercial
relationships with
parties that are
regulatory-
inappropriate or
otherwise undesirable.

254







1. L2CAP Logical Link a Bluetooth Specific
2. LAC and Control Protocol
3. LACNIC Adaptation
Protocol
4. LADDR
L2tp Access Device attached to
Concentrator the switched
network or located
on an end system
supporting L2TP to
pass PPP traffic.

Latin one of four regional
American Internet registries
and that supply and
Caribbean administer IP
Internet addresses.
Addresses
Registry

Layered s SCSI device driver
Device architecture used in
Driver early versions of
OS/2.

255

5. LAI Location the information carried in
Area the SIM of GSM handsets
Identity that identify the
subscriber's home area.
This is used for billing
and sub-net operation
purposes.

6. LAMP Linux, Also defined as Linux,
Apache, Apache, MySQL and
MySQL Pythor or Perl. The term
and PHP LAMP is used to describe
a web based solution
produced using PHP
(scripting), MySQL
(database), Apache (web-
server) under Linux
(operating system), each
of which are free to
download. It therefore
describes a website using
free off-the-shelf
components.

256

7. LAN Local Area A network of
Network interconnected
workstations sharing
the resources of a single
processor or server
within a relatively small
geographic area.
Typically, this might be
within the area of a
small office building.

8. LANE Local Area A set of services and
Network protocols that provide
Emulation for the emulation of
LANs, using ATM as a
backbone to allow
connectivity among
LAN and ATM
attached end stations

257

9. LAPD Link Access specified in ITU-T
Procedures Q.920 and ITU-T
on the D Q.921, is the second
channel layer protocol on the
ISDN protocol stack
in the D channel.

10 laser light Analog transmission
11 LAT amplification device in which a
by suitable active
stimulated material is excited by
emission of an external stimulus to
radiation produce a narrow
beam of coherent light
that can be modulated
into pulses to carry
data. Networks based
on laser technology
are sometimes run
over SONET.

Local A table containing the
Address IP address range that
Table is inside a firewalled
network

258

12 LATA Local Denotes a geographical
13 LBA Access and area established for the
Transport provision and
Area administration of
communications
service. It encompasses
one or more designated
exchanges, which are
grouped to serve
common social,
economic, and other
purposes.

Logical a method of accessing
Block hard disk drives. It
Addressing allows IDE disks larger
than 504 megabytes
(1024 cylinders) in size
to be fully partitioned
using the MS-DOS
fdisk command.

259

14 LBAC label-based A security mechanism
access that uses security labels
control to restrict user access to
individual table rows
and columns.

15 LBS Location- Services or applications
16 LBG based that center around a
service user’s location in a
mobile environment.
load Services include finder
balancing applications that let
group mobile phone users
locate friends or family,
businesses or
landmarks.

A grouping of Fast Path
input messages that are
ready for balanced
processing by one or
more copies of a Fast
Path program.

260

17 LBO line Abbreviation for line
buildout buildout. Synonym
building out.
18 LCC / Leaded
LLCC Chip a type of packaging for
Carrier / integrated circuits
Leadless which has no "leads",
Chip but instead rounded
Carrier pins through the edges
of the ceramic package.

19 LCC Limited also called CMP-50
combustible cable, is fire-resistant
cable cable with insulation
made of a synthetic
material called
fluorinated ethylene
propylene (FEP).

261

20 LCD liquid A low-powered, flat-
21 LCI crystal panel display
display technology. LCD
displays create images
local using liquid crystal
component molecules controlled by
installer an electrical field.

In IBM Tivoli Kernel
Services, the
component that pulls
and runs native code,
shared libraries, and
installation scripts that
are needed for
deploying components.

22 LCM Life Cycle the management of the
Management entire life of a program
including the three
typical phases:
transition,
transformation & end-
state

262

23 LCN local A communication
24. LCO communication network within a
network TMN
(telecommunications
language management
context object network) that
supports data
communication
functions (DCFs)
normally at reference
points q1 and q2.
A context server
object that mediates
the routing of
inbound customer
interactions as well
as the supply of
outbound responses
in a language-
appropriate manner.

25 LCP Link Control Part of the PPP to
Protocol establish, configure,
and test data link
connections

263

26 LCR least cost Method for automatic
27 LD routing selection of the least
costly facility for
transmission of a call.
Synonyms: Most
Economical Route
Selection (MERS);
Route Optimization;
Automatic Route
Selection; Flexible
Route Selection.

Laser Disc An optical disc which
stores information that
can be read by a laser
beam. Laser discs can be
used to store data, but
are usually used for
video and audio
together. Laser discs
come in 8" and 12"
diameters.

264

28 LDA Local A mail service agent
29 LDAP delivery that transfers mail
agent
messages from
incoming mail storage
to the email recipient’s
inbox.

Lightweight If you want to make
Directory directory information
Access available over the
Protocol Internet, this is the way
to do it. LDAP is a
streamlined version of
an earlier directory
standard called X.500.
What makes LDAP so
useful is that it works
great over TCP/IP
networks, so
information can be
accessed through
LDAP by anyone with
an Internet connection.

265

30 LDCM LANDesk developed by Intel, is
31 LDIF Client a management tool
Manager that constantly
32 LDM monitors networked
personal computers
and workstations for
hardware problems.

LDAP Data a file format that is
Interchange widely used for
Format building a database of
directories that are
limited stored on multiple
distance servers, for adding
modem large numbers of
directories to a
directory database,
and for synchronizing
the contents of those
directories. The
servers on which the
directories are stored
must support the
LDAP protocol.
limited distance
modem

266

33 LDP Label A fundamental concept
34 LDR Distribution in MPLS is that two
Protocol Label Switching Routers
must agree on the
meaning of the labels
used to forward traffic
between and through
them

Light This is a special type of
Dependent resistor and is sometimes
Resistor called a photoconductor.
LDRs are made so that
their resistance decreases
as the level of light
falling on them
increases.

35 LDS logical data In bidirectional text
stream representation, a stream
of data that is organized
in a readable sequence.

267

36 LDT Lightning An interconnection
37 LEAP Data Transfer standard introduced
(Bus) by AMD that allows
for fast data transfers
Lightweight among the
Extensible Northbridge part of a
Authentication chipset,
Protocol the PCI bus(es), and
the Southbridge part.

also known as Cisco
-Wireless EAP, is a
Cisco security
technology that
builds on Wi-Fi's
WEP encryption.

38 LED light-emitting A semiconductor that

diode produces light when

activated.

268

39 LEL Link, Lotus term
40 LER Embed and
Launch-to-
edit

Label Edge Converts IP packets
Router into MPLS packets, and
MPLS packets into IP
packets. On the ingress
side, the LER examines
the incoming packet to
determine whether the
packet should be labeled.

41 LF Line Feed Feeding the paper
through the printer just
far enough to print the
next line. Also, a button
or computer instruction
that activates a line feed

269

42 LFB look-ahead- Information
43 LFS for-busy concerning network
resources available to
support higher
precedence calls.

Linux From Project that provides
Scratch you with the steps
necessary to build your
own custom Linux
system

44 LGA Land Grid also known as socket
Aray T,means that the pins
are on the
Motherboard, not the
Processor. The Prescott
is using the LGA 775
socket.

270

45 LGPL Lesser An evolution of the
46 LID General Library GNU
Public
License In distributed relational
(GNU) database, an identifier
or short label that is
local mapped by the
identifier environmental
descriptors to a named
resource.

47 LIDE Light Scanner technology
48 LIFO emitting by Canon
diode In-
Direct A type of message
Exposure queuing that puts the
last message received
last in, first first in line.
out

271

49 LINAC Linear a particle accelerator
Accelerator commonly used for
50 Lion / external beam
Li-ion Lithium- radiation treatments of
ion cancer patients.
LINAc uses
microwave technology
to accelerate charged
particles.

a type of rechargeable
battery widely used in
portable computers.

51 LION Lower LION cable system
Indian
Ocean
Network

272

52 LIPS Logical In artificial intelligence,
53 LIS Inferences the speed at which an
Per Second application can process
54 Lisp instructions. The human
55 LKM brain works at about 2
LIPS.

Laboratory a class of software
information which handles storing
system information generated
by laboratory processes.
These systems often
must interface with
instruments and other
information systems
such as HIS.

List A programming
Processor language developed at
or List MIT in the 1950s by
Processing John McCarthy.

Loadable allow for the adding of
Kernel additional functionality
Modules directly into the kernel
while the system is
running.

273

56 LL Local loop A generic term for the
57 LLC
connection between the
customer’s premises

(home, office, etc.) and
the provider’s serving

central office

Logical LAN protocol that
Link specifies an
Control implementation of the
LLC sublayer of the
data link layer.

58 LLDP Link Layer LLDP is a vendor-
Discovery neutral Layer 2 protocol
Protocol that allows a network
device to advertise its
identity and capabilities
on the local network.

274

59 LLTD Link Layer A feature that helps
Topology users to troubleshoot
Discovery their networks. LLTD
automatically detects
multiple network
devices and gives a
graphical presentation
of the connected
hardware to identify
configuration errors.

60 LLU Local loop LLU is the process of
unbunding allowing competitive
telecommunications
operators to use the
twisted-pair telephone
connections from the
incumbent telephone
exchange's central
office to the customer
premises. This local
loop is owned by the
ILEC.

275

61 LMA Lightspeed nVidia term
Memory
Architecture

62 LMDS Local This is a fixed point
63 LMP Multipoint (non-mobile) wireless
Distribution technology that
Services operates in the 28 GHz
band and offers line of
Link sight coverage over
Manager distances up to 5
Protocol kilometers. It can
deliver data and
telephony services to
80,000 customers from
a single node.

a data link layer
protocol in the
Bluetooth protocol
stack. LMP carries out
link setup,
authentication, link
configuration and
other protocols.

276

64 LMPP Lighttpd/MySQL A web application
/PHP/Python stack based upon
lighttpd, MySQL,
, and/or (compare
to LAMP).

65 LMS Learning a software
66 LNA Management package, that
System enables the
management and
launch numerical delivery of
aperture learning content
and resources to
277 students. Most
LMS systems are
web-based to
facilitate
"anytime,
anywhere" access
to learning
content and
administration.
The numerical
aperture of an
optical system
used to couple
(launch) power
into an optical
fiber.

67 LNIB like new, in slightly used but
box supplied with original
packaging

68 LNO Loop Nest a special case of loop
Optimization transformation which
deals with nested loops
that makes possible
large reductions in the
cache bandwidth
necessary for some
pervasive algorithms.

69 LNP Local Subscribers' ability to
Number switch local or wireless
Portability carriers and still retain
the same phone
number, as is possible
now with long-distance
carriers.

278

70 LNS L2tp Maintains L2TP
71 LOB Network sessions with whatever
Server is connected to the
72 LOC Line-of- LAC
Business
Used to refer to a
Lines of business critical
Code application, i.e. an
application that is
essential to the trading
or survival of a
business. Normally
written as "LOB app"
or "LOB application".

A measure of the size
of a program.

73 LOCK local object In IBM Tivoli Kernel
creator and Services, the
killer component that starts,
monitors, stops, and
restarts an ORB.

279

74 LODA Lombardi IBM Websphere On-
On- Demand Delivery
Demand
Assistance

75 Loran Long-range A long-range radio
radio navigation position-
navigation fixing system
consisting of an array
of fixed stations that
transmit precisely
synchronized signals to
mobile receivers.

76 LOS Loss of a condition where the
signal received signal drops
below threshold due to
a terrain obstruction or
other phenomenon
increasing the link
budget loss beyond
design parameters.

280

77 LPB Low Ping Network multiplayer
78 LPC Bastard games attribute

Local A mechanism that
Procedure loops remote
Call procedure call
without the presence
of a network so that
the client and server
portion of an
application can
reside on the same
machine.

79 LPD line printer The printer server
80 LPDA daemon that allows other
hosts to access its
Link Problem printer.
Determination A series of
Aid procedures used by
products to test
281 modem or other DCE
operations, and to
provide information
about the DCE and
the data link.

81 LPF League for A nonprofit
Programming organization
Freedom dedicated to "bringing
back the freedom of
programmers to write
programs," in the face
of the recent trend
toward complicated
copyright and patent
lawsuits.

82 LPFM low-power A broadcast service
FM radio that permits the
licensing of 50- to
100-watt FM radio
stations within a
service radius of up to
3.5 miles and 1- to
10-watt FM radio
stations within a
service radius of 1 to
2 miles.

282

83 LPP Land Pre- Addressing aid in
Pits writing DVD-R

84 LPTV low-power A broadcast service
85 LPWA television that permits program
broadcasting via
television translators
operating with low
power. LPTV service
includes the existing
translator service and
operates on a
secondary basis to
regular television
stations.

Lucent Anonymous web
Personalized browsing service
Web
Assistat

283

86 LPX Low a motherboard form
Profile factor used for low-
eXtension profile computer cases.
/ Extended LPX boards use a riser
card arrangement for
expansion cards, which
means that installed
expansion cards are
parallel to the
motherboard instead of
perpendicular to it.

87 LQSR Link a routing protocol for
Quality wireless mesh networks.
Source The protocol was
Routing developed by Microsoft
for use with
their MCL technology,
which facilitates the
interconnection of
computers into a mesh
network

284

88 LRF Little Rubber Support devices for
Feet computer cases and
other equipments

89 LRN Location The ten-digit (NPA-
90 LRU Routing NXX-XXXX)
91 LSAS Number number assigned to a
switch/POI used for
routing in a
permanent local
number portability
environment.

least recently Pertaining to
used an algorthmn used to
identify and make
available the cache
space that contains
the data that was
least recently used.

Local Security Verifies validity of

Authentication user logons to

Server PC/Server.

285

92 LSB Least The bit of a binary
93 ADTA Significant number which is
94 LSI Bit farthest to the right,
indicating the number
Locality- of ones; also
Sensitive designated as bit zero.
Hashing
an algorithmn for
Large solving the
Scale of (approximate/exact)
Integration Near Neighbor Search
in high dimensional
spaces.

IC manufacturing
integration level: it's
the process of placing
from 3,000 to 100,000
transistors on one chip

95 LSM Local In IBM Tivoli Kernel
Service Services, a component
Manager that runs on each
system that is part of
the distributed system.

286

96 LSR label The role of an LSR is
97 LTC switch to forward packets in
98 LTRS router an MPLS network by
99 LTS looking only at the
fixed-length label.

line traffic In a DDN switching
coordinator center, the processor
that controls traffic on
Letters a line.
Shift
A code character used
Leaning to command a
Toothpick Teletype - like device
Syndrome to perform a physical
shift for alphabetic
characters
Expresses readability
in PERL regular
expressions

100 LUS LookUp Provides the
Service functionality to
discover and register
services

287







A L P H A B E Tm

1. m- mobile A category of
commerce commerce; commerce that
includes any
2. MAC Media purchase transaction
Access completed using a
. Control wireless device,
Mid- such as a cellular
Atlantic phone, PC or
Crossing personal digital
assistant.
A MAC address is a
hardware
identification
number that
uniquely identifies
each device on a
network. The MAC
address is
manufactured into
every network card,
such as an Ethernet
card or Wi-Fi card,
and therefore cannot
be changed.

288 MAC cable system
in USA, St. Croix

A L P H A B E Tm

3. MADM Multiple allows the same
Appearance directory number to
Directory appear on more than
Number one telephone.

4. MAGs Multichannel onsist of client- and
access server-side
gateways middleware,
accompanied by
tools or packaged as
plug-ins, that enable
mobile applications
to work well across a
diverse set of devices
and networks

5. mAH milliampere- a measurement of the
hour or amount of charge a
milliamp- battery can hold.
hour

289

A L P H A B E Tm

6. Malware Malicious Programs with the
Software intent to cause
problems.

7. MAN Metropolitan A data network
8. MANET Area intended to serve an
Network area the size of a
city. Such networks
Mobile Ad are being
Hoc implemented by
Network innovative
techniques, such as
running optical
fibres through
subway tunnels.
A MANET is a type
of ad hoc network
that can change
locations and
configure itself on
the fly. Because
MANETS are
mobile, they use
wireless connections
to connect to various
networks.

290

A L P H A B E Tm

9. MAPI Messaging The Microsoft-
10. MAPP Application developed
Programming programming
Interface interface
specification that
Microsoft enables an
Active application to send
Protections and receive mail
Program over an e-mail
messaging system,
such as Microsoft
Exchange. It was
designed to separate
the mail engine from
the mail client.
To improve security
protections for
customers, Microsoft
provides
vulnerability
information to major
security software
providers in advance
of each monthly
security update
release

291

A L P H A B E Tm

11. MAPP Microsoft To improve security
12. ADTA Active protections for
Protections customers, Microsoft
Program provides vulnerability
information to major
security software
providers in advance
of each monthly
security update
release

Application- an experimental
to- computer algebra
Application system which
combines imperative
programming
facilities with
algebraic
specification
capabilities for the
design and study of
algebraic algorithms.

292

A L P H A B E Tm

13. MASER Microwave A device designed
Amplification to generate a
by Simulated microwave signal
Emission of with low-noise
Radiation properties.

14. Mbps MegaBits Per In data
Second communications, a
common measure
of data speed for
computer modems
and transmission
carriers. One Mbps
is equal to
1,000,000 bps or
1,000 kbps.

15. MBR Master Boot Record located at
Record the beginning of a
bootable disk on
Intel based
systems,
containing the boot
loader.

293

A L P H A B E Tm

16 MBS Maximum ATM network
17. MBSA Burst Size performance
parameter that defines
Microsoft the duration of
Baseline transmission at a peak
Security rate that would be
Analyzer accepted on a given
ATM virtual circuit.

Scans for missing
hotfixes and
vulnerabilities in some
Microsoft products

18. MBT MB MB Technologies'
Technology Bindows is the leading
SDK used for
developing zero-
footprint SOA client-
side applications.

294

A L P H A B E Tm

19. MCA Micro A 32-bit standard
Channel developed by IBM
Architecture for expansion cards.
The standard offered
improvements over
16-bit ISA, but
never caught on
outside of IBM
computers.

20. MCCM multichannel processes enable
campaign companies to
management communicate offers
to customer
segments across a
multichannel
environment, such as
direct mail, call
centers, websites, e-
mail and
communities.

295

A L P H A B E Tm

21. MCI Microwave Microwave
Communications, Communications,
Inc. Inc., acquired by
Verizon.

22. MCIF (IBM) Measured a set of guidelines
Capability and processes
Improvement developed to help
Framework companies more
effectively
manage, measure
and improve their
software delivery
process.

23. MCL Mesh a technology that
Connectivity allows a
Layer computer user to
connect to a
wireless mesh
network that uses
Wi-Fi or
WiMAX.

296

A L P H A B E Tm

24. MCMP Multi- a circuit card that
channel enables the support of
Multi-point up to six independent
applications over a
single multipoint
digital facility.

25. MCP Microsoft refers to both an
Certified individual Microsoft
Professional certification and a
broader professional
certification program.
To be an MCP,
candidates must
complete any one
exam within the
program. The MCP
program offers
multiple
certifications, based
on different areas of
technical expertise.

297