LAN Local area network, a network that's contained within a building or office floor.
Landscape mode Most pages are rectangles, not squares. You can view or print them with the short sides at top and bottom--called Portrait mode--or with the short sides on the right and left--called Landscape mode.
Language Commands or instructions, expressed in words or symbols, which a computer will accept and act upon.
Latency The time that elapses between a call for data being made and the actual trasnfer of data commencing.
Launch To start or run a program.
LCD Liquid Crystal Display. Technology used in flat-panel displays and laptop screens. A liquid crystal solution is held between two sheets of polarising material. When an electrical current is passed htrough the liquid, the crystals align and act as shutters which will either allow light to pass through or block it.
Leading The amount of vertical space between lines of text.
LED Acronym for Light Emitting Diode.  It is a diode (ie. electrical component) that emits light when an electric current flows through it.  It is most commonly used as indicator lights on computer systems and peripherals.
License agreement A legal agreement between a software company and the purchaser of the software. The agreement usually accompanies the software when purchased.
Light Pen A pen with a special tip that lets you select and move objects on your computer screen by touching the pen tip directly to the screen. Light pens are popular for giving presentations on huge, TV-sized monitors.
LILO The LInux LOader. A program that allows you to direct the way in which your machine boots. It is usually written into the Master Boot Record (MBR).
List Box A Window component that contains a list of available choices.
Listserv A mailing list server program sends messages to everyone subscribed to the list, adds new subscribers to the list, and unsubscribes those who want off. It also handles other requests from the list owner. Listserv is the name of one of the original mailing list server programs, developed way back in 1986. It has also become a sort of generic term used for any mailing list server, which can be confusing because Listserv itself is still available and widely used.
Load balancing Software/hardware which allocates processing or service requests to the least busy system in clusters or other interconnected computer systems. The object is to keep the overall usage equally spread across all servers.
Loader Part of the operating system that locates a program on a disk and loads it.
Loss Term used for the extraneous and redundant parts of an audio file (eg. frequencies not audible to the human ear) that have been discarded to make the size of the audio file smaller.
Lossy Term used when referring to graphics files and the way that they store information. A non-lossy graphics file (eg. TIFF) hass no data discarded when they are saved. A lossy file (eg. GIF and JPEG) do have information discarded to reduce their file size.
Lost cluster A cluster that contains current data but, because of errors in the FAT or directories, the file that owns it cannot be determined.
Lurker If you read the messages in a newsgroup but never write and post your own, or if you follow the discussions in a chat room but don't add your own words, you're a lurker. To lurk when you first show up is a good thing: You learn the courtesies and traditions of the newsgroup or room. To continue to lurk indefinitely is seen by some as a bad thing.


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This page was last updated on Sunday, 14 December 2008