http://hexus.net/tech/news/systems/1...omputer-crown/

In March we reported upon IBM's claim that it had designed the world's smallest computer (1mm x 1mm). Big Blue launched its 'computer' at its own Think 2018 Event in Las Vegas and said its tiny computer, packing several hundred thousand transistors, was comparable in computing power to a 1990s era x86 chip.

Previous 'world's smallest computer' champs, the University of Michigan (UM), were not very impressed by IBM's definition of a computer. The Michigan Micro Mote (M3) which was knocked off its tiny top spot was revealed in April 2015 and measured approximately the same size as a grain of rice (2x2x4mm). However, the Michigan Micro Mote retains its programming and data when powered off, just like you would expect of a computer, and the 1mm square IBM does not.