Refers collectively to all types of digital subscriber lines, the two main categories being ADSL and SDSL. Two other types of xDSL technologies are High-data-rate DSL (HDSL) and Very high DSL (VDSL).
DSL technologies use sophisticated modulation schemes to pack data onto copper wires. They are sometimes referred to as last-mile technologies because they are used only for connections from a telephone switching station to a home or office, not between switching stations.
xDSL is similar to ISDN inasmuch as both operate over existing copper telephone lines (POTS) and both require the short runs to a central telephone office (usually less than 20,000 feet). However, xDSL offers much higher speeds – up to 32 Mbps for upstream traffic, and from 32 Kbps to over 1 Mbps for downstream traffic.
- xD-Picture Card
Abbreviated as xD (Extreme Digital), the xD-Picture Card is a type of removable flash memory designed for use in digital cameras. The xD is ultra-compact with its size of 20mm x 25mm x 1.7mm. The xD-Picture Card was developed by Fuji film and Olympus and are used in many models of digital cameras made by […]
The name used by Sun Microsystems for its virtualization and management software. Also called Sun xVM, it is a Solaris-based hypervisor that enables servers to run multiple operating systems simultaneously on a single computer, addressing both desktop and server virtualization. The name itself, according to Sun, represents the intersection (x) of virtualization and management (VM). […]
A color encoding system used for analog television, such as NTSC and PAL. The YUV color model represents the human perception of color more closely than the standard RGB model used in computer graphics hardware. In YUV, Y is the luminance (brightness) component while U and V are the chrominance (color) components.
In typography, the height of a lowercase x in a specific font. This is also called the body height, as it represents the height of the lowercase character’s body, excluding ascenders and descenders.
- YUV color space
The YUV color space refers to the complete range of colors that can be displayed and recorded on digital video. The YUV color encoding system is used for analog television, such as NTSC and PAL.