Bliss (happiness) is the default computer wallpaper of Microsoft’s Windows XP . It is a virtually unedited photograph of a green hill and blue sky with clouds in California. Charles O’Rear took the photo in 1996 and Microsoft bought the rights in 2000.
see also: The most “intelligent” photo
The iconic default Microsoft XP wallpaper “Bliss” is considered to be the most-viewed photo of all time. While Microsoft paid the photographer behind that photo over $100,000 for the usage!