Do you know? 
The world's smallest computer next to a grain of rice. Its size is 0.3 mm x 0.3 mm.
This record has been broken: a research team from Michigan has made the world's smallest computer: the Michigan Micro larger. Its length is only 0.3 millimeters - it looks huge compared to rice grains! This was developed as part of a stupidity between engineers at IBM and the University of Michigan. They are constantly fighting to build the world's smallest computer. But now the question is whether the newly developed chip is not counted as a fully developed computer! Check out the new revolutionary and really small mini-computer from Michigan.