Source:-Google.com.pk
On computers that use a desktop GUI, wallpaper is the monitor pattern or picture or other graphic representation that forms the background onto which all the icons, menus and other elements of the operating system are displayed and moved around. An operating system will typically come with pre-installed images to set as the wallpaper and will also allow users to install their own images to be used as the wallpaper. The wallpaper always stays in the background, and all work is done on top of the wallpaper.
Typically, a wallpaper image may be centered, stretched, or tiled. When an image is centered, it is placed in the middle of the desktop and is surrounded by a solid color. When an image is stretched, it is stretched to cover all of the desktop. Only certain images can be stretched or they look distorted. An image that is tiled is placed on the desktop much like tiles are placed in a shower or a tiled floor. Tiling is commonly used for patterns instead of photos because a pattern is one square image that repeats itself across and down the screen, effectively forming a single image.
Each operating system provides several pre-installed wallpaper images for the user to choose from. A user can also choose to download and install third-party wallpapers and use one of these instead.
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013
Download Wallpapers For Free Images Photos Pictures Wallpapers 2013