The military is a major user of supercomputers (the fastest computers on the planet). These machines were first developed, as were the first computers, for military applications. These ultra-powerful computers are used for code breaking, and to help design weapons (including nukes) and equipment (especially electronics). The military is also needs lots of computing power for data mining (pulling useful information, about the enemy, from ever larger masses of information.) Because there's never enough money to buy all the super-computers (which are super expensive) needed, military researchers have come up with ways to do it cheaper. A decade ago, it...