Display resolution
Display resolution is the number of pixels displayed on a given surface. This is one of the numbers that say the capability of a computer monitor.
For example: a "640 by 480 display", which has 640 pixels from side to side and 480 from top to bottom (as in a VGA display), and therefore has a total number of 640 × 480 = 307,200 pixels or 0.3 megapixels, is what is meant by 640 × 480 display resolution.
Display Resolution Media
1080p progressive scan HDTV, which uses a 16:9 ratio
Difference between screen sizes in some common devices, such as a Nintendo DS Lite and two laptops shown here.
In this image of a Commodore 64 startup screen, the overscan region (the lighter-coloured border) would have been barely visible when shown on a normal television.