Relation between width and height of the screen display. More and more TVs, especially digital ones, are using wider ratio16:9 (1.78:1) in order to have better display of a widescreen format DVD or HDTV standard.

Comb filter is a filter which has variety of very deep falls and slits in his frequency range. Span between slit along frequency axe grows as the multiplier of the lowest frequency slit, so that lineup looks like regularly displayed graph on the linear frequency scale.

Radio signal broadcasting in digital form. This is new standard for broadcasting radio signal in digital form, which let you receiving your favorite radio station without any disturbance or interference. Availability of this standard depends on your home country support and differs from country to country.

DVD uses a way off compressing video data that is known as MPEG2. It can reach a quality off image similar to digital video format D1 which is used by professionals. DVD video offers horizontal picture resolution off around 500 TV lines, compared to VHS (250 lines), Video CD (250 lines) and laser disc (420 lines).

Equalizer, despite his name in fact, is changing a relative power of certain frequency ranges in audio signal. All equalizers are consists of different components so-called filters, and they are in fact frequency-selective circuit, which are comprised of resistance(R), condensers(C), spool (L). ``Q`` or ``quotient`` of one filter is a basically measure off sharpness in graphs of response and is a defined as the central frequency divided by the half power of that range. Filters with big Q-values sounds like a `bell ring’ distorting transient and subjectively attracting attention off listener, when they are intensively used in audio systems.

High definition.

Term which signifies TVs that can read high definition digital format when they are connected on the special HDTV decoder. These TVs can read 720p and 1080p HD formats, they have an analog component and digital HDMI connectivity and as well minimum of 720 lines.

Signifies multimedia interface off a high definition (High-Definition Multimedia Interface). It’s a very similar DVI interface (but uses much smaller connectors), multi-pin HDMI interface transfers uncompressed digital image with copy protection and multichannel sound. Using adapters HDMI can be compatible with most off nowadays DVI connections.

Signifies TV off high a resolution (High-Definition Television). Often is mistakenly used as a generic description for all kind of digital television, but HDTV only relates to formats off highest resolution of totally 18 digital TV formats. Though still accordance among producers, journalists etc has not been achieved, under the term of HDTV we consider 1.800 `interlaced` lines (1080i) or 720` progressive` lines (720p).

Mp3 music files include ID3 marks which contain information of number and the title and as well details off author. Editing is possible on any PC or Macintosh computer.

JPEG signifies Joint Photographic Experts Group, consortium which developed and expanded this format wide world. This is a format off compression which saves digital pictures in a very efficient way.

Display technology base on the liquid crystal (Liquid Crystal Display). LCD is a one off the methods in use for production of flat TV screens. Liquid crystals do not create light; source of light (bulb) behind the panel send light through display. Display consists off to polarized transparent panels added between them there is a solvate of liquid crystals. Electrical current flow which goes trough liquid, force crystal to get together in order to block flow off the light through. Each crystal behaves like a valve which either let the light to go through or blokes it. These schematics of transparent and dark crystals create the image. LCD technology is used in direct view TVs and as well in the TVs with rear and front projection.

Board with the information, which presents data like counter, date and time and battery charging.

Time required for one pixel to be illuminated and darkened. Port trays the levels of quality off LCD monitor.

Standard system for compressing audio files (mPEG-1 Layer 3)

Provides computer connection direct to TV without graphic video adapter.

(PAP) two tuners provide that two pictures stay next to each other. Sound for the left picture can be heard through TV speakers, while the sound for the right picture goes through the telephone plug.

(PIP) portrays small picture from different source, for example from video-recorder. Allows you to check on the second source i.e. (football game score) while you’re watching some other channel or video.

Windows made audio. Format for audio signal compression.