Computer wallpapers


 


Computer wallpapers

A desktop with the famous Bliss wallpaper, the default wallpaper for Windows XP. A screenshot of Ubuntu 6. 06 LTS, showing Dawn of Ubuntu wallpaperDesktop featuring a photograph of a lake as a wallpaper

The terms wallpaper and desktop picture refer to an image used as a background on a computer screen, usually for the desktop of a graphical user interface. 'Wallpaper' is the term used in Microsoft Windows, while the Mac OS calls it a 'desktop picture' (prior to Mac OS X, the term desktop pattern was used to refer to a small pattern that was repeated to fill the screen).

Formats

Images used as computer wallpaper are usually raster graphics with the same size as the display resolution (for example 1024×768 pixels, or 1280×1024 pixels) in order to fill the whole background. Many screen resolutions are proportional, so an image scaled to fit in a different-sized screen will often be the correct shape, albeit that scaling may impact quality. PNG and JPEG format are common. Scarica giochi, sfondi screensaver e suonerie per il tuo cellulare.

Users with widescreen (16:9 or 16:10) monitors have different aspect ratio requirements for wallpaper, although images designed for standard (4:3) monitors can often be scaled or cropped to the correct shape without loss of quality.

Wallpapers are sometimes available in double-width versions (e. g. 2560×1024) for displaying on multi-monitor computers, where the image appears to fill two monitors.

Some display systems allow unconventionally-proportioned images (1:1, 2:1, or even 1:3) to be scaled without change of proportion, to fit the screen, whether it be 16:9 or 4:5. The image would be sized just large enough that one pair of edges touch the edges of the screen, but not all four, as this would unduly distort the image.

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