Screen Resolution is expressed in number of horizontal and vertical picture elements (called pixels) contained in the screen. When the screen resolution is high, greater will be the number of pixels because there are more dots called pixels on each row and there are more rows on the screen and so ultimately more big or detailed is the image on screen. Here in between there’s video display adapters that provides interface between computer and monitor and it transmits the signals that appears as images on the screen.
Here are the display adapters with their screen resolutions and total pixels.
|Video Display Adapters||Resolution in Pixles (H x V)||Total Pixels|
|Monochrome Display Adapter (MDA)||720 × 350 pixels||252,000 pixels|
|Color Graphics Adapter (CGA)||320 x 200 pixels||64,000 pixels|
|Video Graphics Adapter (VGA)||640 x 480 pixels||307,200 pixels|
|Super Video Graphics Adapter (SVGA)||800 x 600 pixels||480,000 pixels|
|Extended Graphics Adapter (XGA)||1204 x 768 pixels||786,432 pixels|