What is display resolution?

Answer 1

Computer Monitors (and all displays really) work by displaying a matrix of tiny dots (called pixels) in a grid which make up the picture on your screen.

Display resolution is simply the number of pixels your screen is displaying.

Example: 800x600 display resolution means that your display is made up of 800 pixels horizontally by 600 pixels vertically.

The higher the resolution, the sharper the image appears, and the smaller details can be rendered. Inversely, higher resolution settings can also make text, images, and webpages appear smaller on your screen, possibly making them more difficult to read.

Answer 2

resolution deals with the amount of information the image holds. more detailed images have a higher resolution because they are more detailed and within them you can see the finer details.