Video Graphics Performance

Video Graphics Performance

      

     

What is Graphics?

Graphics (from Greek γραφικός graphikos, 'something written' e.g. autograph) are visual images or designs on some surface, such as a wall, canvas, screen, paper, or stone to inform, illustrate, or entertain.

In contemporary usage it includes: neeke, pictorial representation of data, as in computer-aided design and manufacture, in typesetting and the graphic arts, and in educational and Neeke recreational software. Images that are generated by a computer are called computer graphics.
Examples are photographs, drawings, Line Art, graphs, diagrams, typography, numbers, symbols, geometric designs, maps, engineering drawings, or other images.

Graphics often combine text, illustration, and color. Graphic design may consist of the deliberate selection, creation, or arrangement of typography alone, as in a brochure, flyer, poster, web site, or book without any other element. Clarity or effective communication may be the objective, association with other cultural elements may be sought, or merely, the creation of a distinctive style.
Graphics can be functional or artistic.

Video Card

 

Alternatively known as a display adapter, graphics card, video adapter, video board, or video controller, a video card is an IC or internal board that creates a picture on a display.

The picture above is an example of a video card with three connections, or video ports, on the back.

VGA

Short for Video Graphics Array, VGA is a popular display standard developed byIBM and introduced in 1987. VGA provides 640 x 480 resolution color display screens with a refresh rate of 60Hz and 16 colors displayed at a time. If the resolution is lowered to 320 x 200, 256 colors are shown.

The illustration shows the 15-Pin VGA connector, its pin assignments, and size dimensions. As can be seen, the VGA In the above picture is an example of what the VGA (SVGA) cable and connector will typically look like on the monitor and on the back of the computer. The VGA standard has been replaced by SVGA and although these cables and connectors are still referred to as VGA they are technically SVGA.

Although it is not uncommon to still find this type of cable and connector with today's computers and monitors. This standard is becoming obsolete and being replaced by the DVI connector and cable.

VGA Pin functions

connector has 15 holes and each hole (pin) has its own function as explained in the below chart, which describes each pin function.

Pin	Function
1	Red Video
2	Green Video
3	Blue Video
4	Monitor ID 2
5	TTL Ground (monitor self-test)
6	Red Analog Ground
7	Green Analog Ground
8	Blue Analog Ground
9	Key (Plugged Hole)
10	Sync Ground
11	Monitor ID 0
12	Monitor ID 1
13	Horizontal Sync
14	Vertical Sync
15	Monitor ID 3