Video-on-Demand (VOD) - A programming library service offering the individual viewer the choice of the available content on demand. When the program is requested and confirmed (by telephone or Internet) it is then delivered to the viewer over an available channel in encrypted form. VOD services are generally arranged on a "Pay per View" basis, analogous to the cinema.
Kelvin - A temperature measuring scale used to describe the color of light. The lower the color temperature the redder the light, and the higher the color temperature the bluer the light.
SPDIF - (Sony/Philips Digital Interface) - This is digital audio, and can be either coaxial cable or fiber optic.
Resolution - The level of resolution directly affects picture quality. The higher the resolution, the more picture detail there is. Many things affect picture quality, including number of bits, pixel count, format, receiver quality, cameras, lenses and lighting used for live or taped programming. Resolution is measured by the number of pixels displayed. One of the high-definition picture formats is composed of 1080 active lines, and each line is composed of 1920 active pixels. Therefore, each frame has over 2 million (1080x1920=2,073,600) color pixels creating the image. By way of contrast, today's typical analog television is roughly equivalent to 480 active lines, with each line holding about 440 pixels. So, each frame has a little over 200,000 color pixels in use creating the image.
Multi-Language Capability (Dialogue) - This feature makes it easier for films to be distributed in multiple languages. The same DVD disc can contain soundtracks in up to 8 different languages.
Ebook - A digital or electronic version of a book.
Digital Answering System - In a fully digital answering system, both incoming and outgoing messages are recorded on integrated circuitry (a memory chip). This feature allows certain messages to be erased while preserving others, regardless of their recorded time.
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