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| LAN (Local Area Network) | A computer network for an area that is usually limited to the same building or the same area in a building.
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| Landscape | This pertains to the orientation of the paper. In landscape
orientation, the paper is turned so that it is wider than it is high. In
portrait orientation, the paper is taller than it is wide. You can remember the
difference by thinking about a picture of a landscape usually being wider while
a portrait, or picture of a person, is usually taller than it is wide.
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| Laptop Computer | A small, portable computer that can sit on your lap. Laptop computers are often also referred to as notebook computers.
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| Laser | A common term referring to a concentrated light technology.
The name is derived from Light Amplification
by the Stimulated Emission of Radiation. Laser technology is used in everything from
toys to telephone systems.
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| Laser Printer |
Printers that produce high
quality printouts. They operate like a copy machine, using lasers and toner to
produce an image. Laser printers that print in black are the most popular, but
color lasers are also available. The cost of toner per page is much less than
the cost of ink per page for an ink jet printers. At one time laser printers
were primarily used by small businesses, but dramatic price reductions have
made them available for everyone. Many people now own both an ink jet and a
laser printer. They use the ink jet, with its higher per page costs, for
printing photos and color documents and the black laser printer for everyday
printing.
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| LCD (Liquid Crystal Display) | Display screens used for digital watches and most portable computers are Liquid Crystal Displays (LCDs). LCD displays have two sheets of polarizing material. These sheets are separated by a liquid crystal solution. An electrical current passing through the liquid causes the crystal to align allowing or preventing light from passing through. Therefore LCD screens can be lightened or darkened by applying/removing current. Nearly all modern flat-panel displays use LCD technologies, although new technologies such as the amazingly realistic OLED screens are poised to take their place in the near future.
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| Leading | (pronounced like "ledding") In word processing and desktop publishing, vertical spacing of lines of text in a paragraph. |
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| LED (light emitting diode) |
These displays are brighter than
LCD and more highly colored, usually red or blue.
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| Legacy Free | A computer that is free of old-type ports is said to be legacy free. This term appears often in computer advertisements. The phrase basically indicates that the computer has only the newer USB ports and does not contain any of the older parallel or serial ports. Since USB ports are faster, they are preferable; however, some older printers, scanners, cameras, and other peripherals have only serial or parallel connectors. In order to connect such a peripheral to a USB port, a special converter is needed. These converters generally work well, but sometimes getting a parallel or serial device to work on a USB connection may be difficult. In certain instances, these peripherals simply refuse to work with legacy free computers. It is best to use USB enabled peripherals with legacy free computers. Some legacy free computers also have another new connection called FireWire (IEEE1394).
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| Lightroom |
This is the photographic darkroom of the digital age. In
fact, it is sometimes called the Digital Darkroom. It is the work area where a
photographer does his digital photography editing and organizing. It generally
consists of a computer workstation with all the necessary computer hardware and
software.
There is also a software program by Adobe called Photoshop
Lightroom that speeds up a photographer’s workflow.
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| Line Spacing | Line
Spacing refers to the number of blank spaces between lines of type. The most
common line spacings are single-spaced and double-spaced, but the line spacing
in a word processor can be set to almost any amount of line spacing.
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| Linux | A version of the UNIX operating system that was developed mainly by Linus Torvalds in 1990. The free program has been widely distributed with open source code, which means that other programmers and developers can easily change and augment the power of the software. It is able to run on many different processor chips and platforms including PCs, Macintoshes, and Amigas. Linux is one of the few successful competitors to the widely used Windows operating system.
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| Lite Version | A version of the software that does
not have all the components that are found in the full version.
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| Local Bus | A data bus that connects directly, or almost directly, to the microprocessor. |
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| Login (Log On) | Before using the Internet or other online service, you are required to login. This usually entails entering a user name and password. |
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| LOL | A shorthand expression often used in e-mail and chat rooms which stands for Laughing Out Loud. |
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| Lossless Compression | This is a type of compression in that allows the exact
replication of the data after the compression and decompression. Lossless files
are generally larger than files using lossy compression. The popular ZIP file
format is an example of lossless compression.
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| Lossy Compression | Lossy is a type of compression algorithm that produces file
that is much smaller, but one in which a slight amount of the detail has been
lost.
An example of a lossy compression from the music world is
the MP3 file that is produced from ripping a CD track. The resulting file is
smaller, but has lost some of the detail of the original recording. While most
of us may not be able to hear the difference, if compressing such a file over
and over again can significantly degrade it. In the world of digital imaging,
MP3 files are also a lossy format.
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| Lurk |
To hang out at a message board, discussion forum, or chat
room reading the messages or chat comments without contributing to the
conversation or to the messages.
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