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In computing, "wallpaper" (also called desktop background) is the digital image that serves as the background for a computer's graphical user interface, appearing behind icons and windows. It is a purely aesthetic and customizable feature that users can change to personal images, patterns, or colors to personalize their screen.

Key features and functions

Purely aesthetic: The primary function of a wallpaper is to provide a visual background for the desktop, with no direct impact on system performance.

Customizable: Users can set any digital image, from personal photos to artistic designs, as their wallpaper.

Can be a pattern: In some older or simpler systems, the wallpaper was a repeating pattern rather than a single image.

Live wallpaper: Some devices support "live" wallpapers, which are animated or change over time, though this can consume more battery power on mobile devices.

Corporate use: Businesses may use company logos or promotional images as corporate wallpaper to inform employees of initiatives or to build morale.