Nanite

Submicroscopic robots designed to perform medical functions within the bloodstream of a living organism. Such functions might include intracellular surgery, elimination of individual disease cells, or removing clotted material from a blood vessel.

Manufactured in Dakar, Senegal, these devices possessed gigabytes of mechanical computer memory. They were designed to operate only while inside cellular nuclei, and were generally kept in a nonfunctional state when not in use.