The term VGA (Video Graphics Array or Video Graphics Adapter) is a graphics display system for PCs developed by IBM. VGA has become one of the standards for the PC image. In text mode, VGA provides a resolution of 720 by 400 pixels. In graphics mode, the resolution is either 640 by 480 (with 16 colors) or 320 by 200 (with 256 colors). The color palette is 262,144.Unlike earlier graphic standards for PCs - MDA, CGA, EGA and VGA - uses analog signals rather than digital signals. Since its introduction in 1987, several other standards have been developed that offer greater resolution and more colors (SVGA, XGA ...), but VGA remains the denominator used. All personal computers manufactured today still have support VGA, and possibly some other more advanced connection.

The SCART is a standard 21-pin connections or that exchanges information audio and video connector. Pin 1 Audio output right channel Pin 2 Input Pin 3 right audio channel Audio output left channel Pin 4 Pin 5 audios mass Mass of blue (blue) (RGB)/Mass Chroma input Pin 6 Audio left channel Pin 7 Blue input signal (RGB)/Chroma Input Pin 8 Change ancho screen 0 6 Volts Volts No signal screen 16: 9 12V Screen 4: 3 Pin 9 mass of green (RGB) input D²B Pin 10 Pin 11 Entry signal green (RGB) Output Pin 12 Pin 13 Mass D²B color Red (RGB)/Mass output Mass D²B Chroma Pin 14 Pin 15 red signal input (RGB)/Chroma Output Pin 16 RGB composite video switching 0V Pin 1 Volt RGB output 17 Mass compues videoto/Sync output Mass/Mass luminance output Pin 18 input Composite Mass/Mass Sync input/Mass switching to RGB/Luminance input Masa 19 Pin output Composite/Sync output video/Video luminance output Pin 20 Composite video/Sync input/luminance input connector Pin 21 Mass