H. Beam Piper 
Graveyard of Dreams [PDF ebook] 

This classic science fiction tale from H. Beam Piper takes place in the Federation universe that served as the setting for many of his stories. In the distant future, the inhabitants of the strange planet Poictesme have long heard rumors about a remarkably powerful computer that is hidden away right under their noses. They come to believe that finding the device will put an end to the grinding poverty and bleak outlook that have long plagued their society. Will the search prove successful — and will their hopes be confirmed?