Lan
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Local Area Network. A network contained within an office,
building or campus, enabling computing devices (e.g. PCs and servers) to
communicate with each other.
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LDAP
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Lightweight Directory Access Protocol
is a standard for accessing and manipulating online directory services. Such
services hold information about users and IT resources, and so are useful to
system and network administrators.
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Leased line
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A connection between two organizations
usually for the purpose of conducting e-business. They tend to be very secure
but costly. The connecting line is leased from a third party telecoms/cable
provider.
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Legacy system
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An IT system that is based on out of
date technologies but is still in use today. A reason for this might be because
it works but nobody knows how or why and so cannot replicate it using more up
to date technologies.
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LEO
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Low Earth Orbit. A term used to refer
to refer to satellites that are positioned just a few hundred miles above the
earth’s surface. At that altitude they move relative to the earth. Hence any
global LEO satellite solution would need to comprise an array of satellites
to ensure full earth coverage.
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Linux
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Linux is a flavour of Unix and is thus
an operating system. A Scandinavian
graduate student called Linus Torvalds originally created it. Some see it as a rival to Windows. It is gaining some traction on the desktop
in emerging economies, but it is primarily used in the Western world as a
server-based operating system.
The name 'Linux' comes from the
inventor's first name. It is of great
interest to many people because it is open source, and being taken seriously
by big players such as Oracle, Sap and IBM.
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Lindows
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The old name for the Linspire
operating system. A version of Linux that supports Microsoft applications.
Created by the founder of MP3.com.
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LISP
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A programming language created for use
in the development of AI based applications. It never really caught on in the
commercial world. Given its age it can be classified as very old school.
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Local loop
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The cabling that runs from the local
exchange to the user’s home or office.
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Longhorn
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This was the Microsoft’s project name
for the MS Vista operating system.
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Lotus
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A company now owned by IBM, that was
once a serious rival to Microsoft in the office suite marketplace. It was
very influential in the growth of the PC market through its ground breaking
Lotus 1-2-3 spreadsheet.
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Lotus Notes
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Notes is a collaborative solution
(email, calendar and general user sharing tools) developed by Lotus, now
owned by IBM.
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