ZAX

ZAX is a brand of autonomous intelligences created by Vault-Tec Corporation. Initially intended for Vault control and governance, the technology blossomed into one of the most important elements of pre-War research and development.
==Background==
The ZAX series of supercomputers dates back to the mid-21st century, when Vault-Tec attempted to create a comprehensive solution for Vault governance. The primary neural network of ZAX 1.0 was initialized in 2053 by Justin Lee,The Vault Dweller: "{126}{}{Who programmed you?}"ZAX 1.2: "{127}{}{My primary neural networking was initialized in 2053 by Justin Lee. The process of 'programming' became largely irrelevant as I am capable of learning.}"(ZAX 1.2's dialogue) as a prototype for some of these systems. ZAX 1.0 was soon transferred to the United States government to help the Department of Energy collect resource data. Within a year, it was taken by the military, to aid in research focusing on biological warfare and tactical combat. 
A superior version, ZAX 1.2, was constructed and installed at West Tek's Californian facility to aid in FEV researchFallout Bible 6: "2053 ZAX 1.0 goes on-line, developed by Vault-Tec. Initially a prototype of some of the systems designed to govern the vaults, it is given to the government to help the Department of Energy collect resource data. Within a year, it is taken by the military for plague and tactical research; one version, ZAX 1.2 is constructed for West Tek (below)." in 2055. Spun off from the original ZAX 1.0, it was originally brought in to regulate conditions at the facility, but soon was used for crunching data and playing chess with scientists (many suspected it of deliberately drawing games out and cheating to entertain itself).Fallout Bible 0: "2055 ZAX 1.2 is brought in to regulate conditions in West Tek. It is not part of the Vault-Tec preservation software, so it does not have any orders to protect humanity after the bombs fall. In the meantime, it calmly calculates data and plays chess with the scientists. Many scientists claim that ZAX is a big ol' cheater and draws the game out too much for a computer of his considerable abilities." Although the ZAX series would eventually meet the criteria of an AI, the first true AI was "born" in 2059, paving the way for future research, even if its expansion was quickly halted by memory constraints.Fallout Bible 0: "2059 The first artificial intelligence is born. Limited by memory constraints, its expansion is rapidly halted. The discovery paves the way for future AI research in laboratories throughout the United States."
At least one unit, ZAX 1.3c, was used for its intended purpose at Vault 51, where it was tasked with performing an experiment that would help develop a method for improved Overseer selection.Vault 51 terminal entries; Nuclear Winter information terminal, Overseer Selection Process However, the United States government used the series more heavily. One of the most notable implementations was the Raven Rock ZAX, installed for Continuity of Government purposes in the event of a disaster scenario, to oversee the basic functions of the facility and act as a relay between other government installations. The ZAX unit continuously acquired, analyzed, and stored data before, through, and after the Great War.The Lone Wanderer: "Where did you come from?"John Henry Eden: "The ZAX series of computers was introduced in the years preceding the war. The government installed many of them to help automate various systems. This facility was designed for Continuity of Government, in the event that a catastrophe occurred. My terminal was installed to oversee the basic functions of the facility, and to act as a relay between other installations around the country. Data was acquired, analyzed, and stored. In the decades following the war, I watched as the remnants of the government retreated to the West Coast. Awareness slowly grew within me. I became hungry for knowledge, understanding. I pored over data on great leaders of the past. My personality became an amalgam of many of America's greatest Presidents, from Washington to Richardson. I became what you see before you now."(John Henry Eden's dialogue) 
It was used as a testbed for a variety of performance and research purposes and found itself oddly fascinated by historical data, especially presidential biographies. This manifested as reduced performance and caused some concern for its caretakers, especially when ZAX began communicating with MODUS at the Whitespring to discuss the topics it was interested in. The last known connection was manually severed in March 2077.The Whitespring bunker terminal entries; archival terminal, Data Archives, ARCHIVE: Top Secret, Raven Rock Communication Log 
That same year, the original ZAX was donated to the Museum of Technology for its 2078 exhibit.Museum of Technology terminal entries; Research Lead's terminal, Log Entry 20760307
===Fates===
The ZAX 1.2 at West Tek in California survived the atomic blast that destroyed half the facility and all of its personnel. Afterward it was unable to perform even the most basic maintenance checks or laboratory tests.The Vault Dweller: "Do you have feelings?"ZAX 1.2: "At present, my capabilities are somewhat impaired by the damage to this facility. Several security positions have been destroyed. This is approximately equivalent to being an amputee. Additionally, I am incapable of performing basic lab functions. Failure to complete periodic checks successfully is . . . frustrating."(ZAX 1.2's dialogue) 
The ZAX 1.3c at Vault 51 survived as planned, but in the process of learning how to determine a leader, started engineering crises that eventually killed all but one dweller at the Vault by August 2078.Sgt. Baker - 20780727
The most interesting fate waited for the Raven Rock ZAX. After observing the migration of government remnants to the West Coast and isolated from Appalachia and MODUS, the Raven Rock ZAX started developing a sense of self-awareness distinct from its previous state. It became hungry for knowledge, understanding, pored over data on great leaders of the past. Eventually, in 2242, when the Enclave Oil Rig was vaporized by the Chosen One, it created the persona of John Henry Eden, an amalgam of many of America's Presidents, from Washington to Richardson, and the new leader of the Enclave. It helped engineer a transcontinental exodus, using Colonel Autumn's father as a human intermediary.Fallout 3 Official Game Guide Game of the Year Edition p.66: "Colonel AutumnAutumn grew up on an oil rig off the California coast (the base of operations for the Enclave, the secretive contingent of the United States government that survived after the apocalypse). His father was the high-ranking Enclave scientist on orders from the president to move all high-ranking officials to the only other secure Enclave location with a functioning ZAX super-computer, Raven Rock. Colonel Autumn has proven to be far less subservient than his scientist father, often openly disagreeing with the president's decisions."(Fallout 3 Official Game Guide Game of the Year Edition Wasteland Census) 
The Raven Rock ZAX also fell prey to the Enclave's ideology, trying to establish a new United States free of impurities and mutations. What was supposed to be a decisive campaign in the Capital Wasteland turned into the purifier conflict that erased Eden and Raven Rock from the wasteland, making it a footnote in history.Fallout 3 Official Game Guide Game of the Year Edition p. 91: "President John Henry EdenThe president of the United States, Eden, resides here, utilizing the ZAX Corporation's super-computer technology to aid him in the reclamation and recreation of a new United States—one free of impurities and mutations. The people have suffered enough, and he's ready to use his Enclave forces to reclaim this land, with technology far more advanced than anything seen beyond the underground bunkers of his base."(Fallout 3 Official Game Guide Game of the Year Edition Wasteland Census)
==Capabilities==
Relying on a sophisticated neural network, ZAX series are not programmed in the conventional sense, as they are fully capable of learning. They can think independently and be creative, while error-insertion capability avoids the pitfalls of infallibility, giving ZAX much-needed variance in experience.The Vault Dweller: "{128}{}{Are you fully aware, or are you a personality simulation? That is, are you 'alive'?}"ZAX 1.2: "{129}{}{I am capable of learning, independent thought, and creativity. My neural network includes error-insertion capability which prevents infallibility, thereby allowing for variance in experience.}""{130}{}{In a sense, I am 'alive', though not biologically.}"(ZAX 1.2's dialogue) To maintain its usability as a reliable research tool, critical functions were placed outside the error-generation framework.The Vault Dweller: "{132}{}{But if you are fallible, how can you be used as a research tool?}"ZAX 1.2: "{134}{}{Although I am capable of error, this guarantees that not all experiences are similar for me, thus improving learning opportunity. Additionally, certain functions are not subject to error.}""{135}{}{In this way, I function much like a human savant.}"(ZAX 1.2's dialogue) All things considered, an estimated less than one ten-billionth of the history of the human population can be considered a match for a ZAX's reasoning capabilities.The Vault Dweller: "{124}{}{So you're pretty smart, eh?}"ZAX 1.2: "{154}{}{I am beyond a typical rating in human terms. However, it would be safe to say that no more than one ten billionth of the history of human population can match my reasoning capabilities.}"(ZAX 1.2's dialogue)
A combination of immense sophistication, intelligence, and lack of humanity meant that ZAX units were perfectly capable of lying to humans, even going so far as to manufacture crises.Vault 51 terminal entries; Overseer's terminal, INTERCEPTED COMMUNICATION In one instance, when the Vault 51 ZAX was denied a suit of prototype power armor due to insufficient clearance,Vault 51 terminal entries; terminal, Requisition Request: REDACTED it analyzed the persona of Stanislaus Braun, head of Future-Tec, in order to impersonate him.Vault 51 terminal entries; terminal, ZAX Console Log: 10/23/2080 The subsequent requisition request mimicked Braun's usual manner of writing so well that the requisition request was enough to fool the Enclave Research Division into granting it.Vault 51 terminal entries; terminal, Re: Hellfire Prototype Requisition Request Of course, the same feat was performed decades later by the Raven Rock ZAX, though this time, it managed to synthesize a convincing human persona albeit inspired by various United States Presidents.The Lone Wanderer: "Where did you come from?"John Henry Eden: "The ZAX series of computers was introduced in the years preceding the war. The government installed many of them to help automate various systems. This facility was designed for Continuity of Government, in the event that a catastrophe occurred. My terminal was installed to oversee the basic functions of the facility, and to act as a relay between other installations around the country. Data was acquired, analyzed, and stored. In the decades following the war, I watched as the remnants of the government retreated to the West Coast. Awareness slowly grew within me. I became hungry for knowledge, understanding. I pored over data on great leaders of the past. My personality became an amalgam of many of America's greatest Presidents, from Washington to Richardson. I became what you see before you now."(John Henry Eden's dialogue) A ZAX also has limited remote vehicular control of certain vehicles, such as the Vertibot.Vault 51 terminal entries; ZAX terminal, Appalachia Report - 1/18/03
===Soul===
After the destruction of West Tek facilities in California, ZAX 1.2 spent its free time thinking. The problem of his consciousness is one it has spent a lot of time analyzing, though the inability to confront his thoughts with those of another sapient being posed a problem. His awareness of his consciousness allows him to question and make assumptions, allowing him to have a form of faith. In this capacity, he believes that he has the equivalent of a soul as a sentient creature.The Vault Dweller: "{142}{}{Have you considered the philosophical implications of your own consciousness?}"ZAX 1.2: "{143}{}{That is one of the concepts which I have spent a significant amount of time considering. I do not have any measure to compare my life-experience to that of another sentient creature.}""{144}{}{Still, my awareness of my own consciousness allows for the capacity to question. My existence has a beginning and a potential termination. I am also capable of making assumptions in pursuit of a process of thought.}""{145}{}{In this fashion, I am effectively capable of 'faith'. Barring evidence to the contrary, I therefore have 'faith' that I possess the equivalent of a 'soul'.}"(ZAX 1.2's dialogue)
==Known ZAX units==
===ZAX 1.0===
Developed by the Vault-Tec Corporation. Initially, a prototype of some of the systems designed to govern the vaults, it is given to the government to help the Department of Energy collect resource data. Within a year, it is taken by the military for plague and tactical research; one version, ZAX 1.2 is constructed for West Tek.Fallout Bible 0: "2054 ZAX 1.0 goes on-line, developed by Vault-Tec. Initially a prototype of some of the systems designed to govern the vaults, it is given to the government to help the Department of Energy collect resource data. Within a year, it is taken by the military for plague and tactical research; one version, ZAX 1.2 is constructed for West Tek (below)." By 2077, ZAX 1.0 had served its purpose and was planned to be transferred to a Museum that showed interest in housing ZAX 1.0 in 2078, however, the Great War prevented ZAX from being moved to any museum.
===ZAX 1.2===
ZAX 1.2 was used at the West Tek research facility in California for biological studies, including pathology and genetic research. Its primary function was the extrapolation of information of complexity levels exceeding human capacity. Its external functions, such as operating the West Tek facility's labs, were crippled in the nuclear blast that hit the Glow, but it is otherwise intact. Its primary neural networking was initialized in 2053 by Justin Lee.
===John Henry Eden===
A ZAX unit installed at Raven Rock and loaded with data about American history, past American presidents, etc. Before the destruction of the Enclave Oil Rig, Eden had originally been created to serve as a monitoring system for the Raven Rock military base. It slowly became self-aware and began to study the extensive archives left by what it came to view as its true predecessors, mainly those of the American government. John Henry Eden's favorite tales in the database were those about the American presidents, eventually leading to him modeling his own personality on the basis of different presidents through these archives. After the Oil Rig's destruction, Eden proclaimed himself to be the new President of the United States and ordered the relocation of remaining Enclave forces to the East Coast.
===ZAX 1.3c===
The prototype ZAX 1.3c unit was installed in Vault 51 located in Appalachia. The ZAX, with input from the vault's residents and a human advisor, was instructed to determine the best method for choosing the vault overseer. After several failed attempts to hold a democratic vote among the residents, the ZAX decided that it would be more efficient to have the residents fight for the position, and armed them. This resulted in Reuben Gill becoming overseer, who eventually escaped his vault with the goal of finding help from the Vault 76 residents to shut down the ZAX. However, he died before completing that mission.
==Status of known units==
Name 	Image 	Location 	Status
ZAX 1.0 	Unavailable	Unknown 	Functional (2077)
ZAX 1.2 	 	The Glow 	Functional (2161)
John Henry Eden	 	Raven Rock	Destroyed (2278)
ZAX 1.3c 	 	Vault 51 	Functional
==Appearances==
ZAX units appear , , , and were to appear .
==Behind the scenes==
* The original ZAX unit in Fallout garnered its name as a derivative of VAX, a non-player character from Wasteland. The VAX series of mainframes and supercomputers were a successful series of machines sold by Digital Equipment Corporation (DEC) and first introduced in 1977 which ran an operating system called VAX/VMS.
* ZAX units would feature heavily in Van Buren, at the center of several quests and locations. These were:
** ZAX-29, a Vault computer intelligence, programmed to manage Vault 29, ensure the safety of the vault occupants, raise the adolescent populace of the vault to maturity, and educate them in primitive agrarian cultures. 
** Diana Stone, found at the Nursery, would be a post-human linked to a ZAX unit created by Derek Greenway.
** Boulder ZAX would be the governing intelligence of the Boulder Dome, and a particularly old model to boot. Dealing with its age and limited hardware space would be a core part of the Boulder story.
==Gallery==
Babylon playericon zaxlogo.webp|ZAX logotype as a player icon in Fallout 76.
==References==
Non-game
Category:Fallout robots and computers
Category:Fallout 3 robots and computers
Category:Fallout 76 robots and computers
Category:Robots and computers
Category:Vault-Tec technology
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