Some features of high-resolution desktop wallpaper include a crisp appearance even when cropped tightly or zoomed in closely and a high number of dots per inch, or dpi. High-resolution desktop wallpapers are designed for monitors or screens with dimensions of 1024 by 768 or 1280 by 800 pixels per inch.
Resolution is a measure of the number of pixels in a given computer display or computer image. Pixels are tiny points of lights that are used to display visual information on a computer display. Images with a large number of dots per inch are called high resolution because they contain a large number of pixels. 300 dpi is considered the standard minimum amount for high-resolution images.