Default wallpapers are used on your computer using a desktop design based on user interface. It is a setting sample found in your computer against the menus, icons and other elements displayed on your computer screen. They are usually in JPEG or GIF formats and can be used with different operating systems such as Microsoft Windows, Macintosh Mac OS, Linux and a lot more. However, these default wallpapers could be a little boring. For this, you need something that can make your computer screen scream of excitement and fun.