ZAX (Boulder Dome)

 is the outdated supercomputer machine intelligence in charge of The Calculation, the Boulder Dome installation, and reasearch of the New Plague in 2253.

Background
This ZAX module was constructed somewhat erroneously two years before the discovery of the New Plague. Put simply, only two years after he was made, a better computer A.I. (ODYSSEUS) was created to outperform nearly all of the contemporary ZAXes.

As of 2253, the ZAX and ODYSSEUS had a competitive rivaly, where both were researching and making calculations about the New Plague. Of course, ZAX is way out of shape to even continue making the calculations he is, considering he doesn't remember why he even started them. ZAX even has had some of his security systems hacked by ODYSSEUS, and is fighting to protect himself from succumbing to memory cannibalization. To be learned by the PC, he has used almost all of his memory banks that are still functioning in the calculation, and over the span of his life.

Interactions with the player character
Being extremely important to the Dome's survival, ZAX is most likely to task the player with finding new memory storage units for it. Holodisks are one thing that the Dome scientists are willing to barter from you, but they are a weak, temporary fix, and not nearly enough for mass memory storage. When talked to, the ZAX can answer such questions as the origins of the plague, ULYSSES' purpose(also know as ODYSSEUS), and his calculation.

Appearances
did not appear, nor was mentioned in any published games, but was going to appear in Van Buren, the canceled Fallout 3 by Black Isle Studios. It is unknown whether a similiar NPC will be in any upcoming game.