Short for logical unit number, a unique identifier used on a SCSI bus to distinguish between devices that share the same bus. SCSI is a parallel interface that allows up to 16 devices to be connected along a single cable. The cable and the host adapter form the SCSI bus, and this operates independently of the rest of the computer. Each of the eight devices is given a unique address by the SCSI BIOS, ranging from 0 to 7 for an 8-bit bus or 0 to 15 for a 16-bit bus. Devices that request I/O processes are called initiators. Targets are devices that perform operations requested by initiators. Each target can accommodate up to eight other devices, known as logical units, and each is assigned an LUN. Commands that are sent to the SCSI controller identify devices based on their LUNs.
Short for Lempel-Zif-Welch, a popular data compression technique developed in 1977 by J. Ziv and A Lempel, and later refined by Terry Welch. It is the compression algorithm used in the GIF graphics file format, which is one of the standard graphic formats used by CompuServe and the World Wide Web. The patent for LZW […]
The loop capable fabric port (L_Port) is a basic port in a Fibre Channel Arbitrated Loop (FC-AL) topology. If an N_Port is operating on a loop, it’s referred to as an NL_Port. If a F_Port is on a loop it is known as an FL_Port.
A typesetting system based on the TeX programming language developed by Donald E. Knuth. Most people who use TeX, however, utilize one of several macro packages that provide an easier interface. The two most popular are LaTeX, originally written by Leslie Lamport, and plain TeX, written by Knuth. LaTeX provides higher-level macros, which makes it […]
- La Fonera
The name of the 54 Mbps wireless router used by FON. It plugs into your broadband Internet connection, and turns it into a public wireless access point (AP), which can then be accessed by members of the FON Wi-Fi community if in that area. For this reason, FON calls the La Fonera a social router […]
A technology developed by Yamaha Corp. and Fuji Photo Film Co. that enables consumers to burn images directly onto a special dye layer on a disc, using the same laser used for data recording. To burn images and text, you must use the complete Labelflash system which consists of special Labelflash DVD media and a […]