Cores



Cores (also referred to as spheres, personality cores/spheres, or Aperture Science Artificial Personality Constructs) are machines designed to house advanced artificial intelligence, mostly unique for their ability to express emotions. Cores generally come in two varieties: spherical and input. Spheres are the standard form, used as a standalone body for Personality Constructs and in android bodies like Atlas'. Input cores, by contrast, are elliptical in shape and are used for the turrets and in android bodies like P-Body's. Spherical cores that do not have limbs are generally attached to management rails in the Aperture Science computer-aided Enrichment Center.

Function
Developed by Aperture Science technicians, GLaDOS is the earliest known personality core - specifically designed for becoming the Enrichment Center's overseer. The next cores developed were given the purpose of counteracting GLaDOS' psychotic behavior (such as flooding test chambers and other vital parts of the facility with neurotoxin) by integrating with her subconscious and altering her personality.

Often present in the form of spherical shapes, these cores are a more simplistic design as their purpose had been more at hand instead. This contrasts with the majority of the designs of Aperture androids in the Enrichment Center that are personality core-based such as Atlas (enclosed core design), P-body (core inputs), and turrets (also core inputs).

Personality cores
As the name implies, each core has its own unique personality and behavior, which can be incorporated into the central core when they are physically attached to it. Most cores were unneeded and deactivated.

The general form of a personality core is a large, spherical construct roughly a foot in diameter resembling an eyeball, containing sensors (with the "eye" presumably being the core's camera), two handles (possibly dating from when humans had to transport and handle them manually), and other equipment, such as ports to hold them onto a security rail for them to move on, or to plug into the central computer. The cores in Portal 2 also have eyelids.

Central core


The central core is the highest rank of all Aperture Science Personality Cores in the Enrichment Center, given to the core hardwired into the enormous robotic body in the Central AI Chamber.

A central core has the power to control and regulate the entire Enrichment Center, including the camera feeds, test chamber assembly and storage, turret production lines, and neurotoxin.

GLaDOS, who was designed with the sole purpose of being the central core herself, has her own unique shape that is quite different from the other personality cores, with an oblong white "body", black "face", and a yellow "eye".

Morality Core


The morality core is one of the more important cores attached on GLaDOS in Portal. It is a core with a purple "eye" and two dots just beneath it.

Unlike other cores, and much like Chell, the morality core is mute.

Curiosity core


The second core attached to GLaDOS is the curiosity core. It is the core with an orange "eye" and four dots beneath it. It has a tendency to constantly ask questions, ranging from its surroundings to Chell, to where it is going.

Intelligence Core


GLaDOS' third core, the intelligence core, (referred to as the "crazy core" in the subtitles), has a blue "eye" with a huge pupil with six dots beneath it. It rambles on about an odd recipe for a rather unique kind of cake,

Anger Core


The last core attached to GLaDOS is the anger core. It has a red "eye" with eight dots beneath it. It is also referred to as the "emotion core" and the "aggressive core". Rather than speak, the Core snarls and growls ferociously at Chell. (These snarls and growls were later used in Valve's game Left 4 Dead, which featured the same actor, Mike Patton, as the infected.)

Wheatley


Wheatley, is portrayed as bumbling, chatty, desperate when things did not catch up to his expectations, and often hesitant. He is the first character to have interacted with Chell in the game, and is one of many cores seen awakening at the end of Portal.

Corrupted cores
Due to technical difficulties over time, a core may be detected as a corrupted core and would be subject to disposal. However, if the corrupted core is the central core, a substitute core must be present in a core receptacle in order to initiate a core transfer. Central core corruption will not be detected if another core is not present. This is because other cores would not usually be present, except for core transfer. Once a substitute core is found, both cores must agree or disagree on the core transfer procedure. If one agrees while the other disagrees, the transfer process cannot occur unless a Stalemate Resolution Associate is present in order to press the stalemate resolution button, which will initiate the core transfer process once the Associate has returned to the Central Chamber.

All three Corrupted Cores are voiced by Nolan North. Each of their corruption levels is 25%, as indicated according to the Announcer when they are attached to Wheatley. And because the corruption level was already at 25% when the final fight with Wheatley started, it may be surmised that Wheatley himself is also a Corrupted Core.

GLaDOS was 80% corrupt when she was replaced in the game by Wheatley. Due to her behavior change after being put in the potato and then "reinstalled" at the end of Portal 2, it may be surmised that this reduced her own corruption to 0%. This change in GLaDOS (as well as Wheatley's behavior) further indicates that when a core is corrupt, it becomes irrational, in other words, "crazy" or "insane" by human standards, and even paranoid and homicidal.

Space Sphere


The Space Sphere is one of three active, corrupted cores. It speaks rapidly and possesses an unhealthy obsession with space. Its key personality trait is its often-repeated desire to travel to outer space. The Final Hours of Portal 2 reveals Valve's inspiration for the Space Core: an Oregon Coast Aquarium ad with a goldfish rapidly and repeatedly humming, blurting, and stating that he would like to go to the aquarium, much like the Space Core does.

Adventure Sphere


The second corrupted core, the Adventure Sphere (or as he calls himself, Rick) speaks like a stereotypical tough guy.

Fact Sphere


The Fact Sphere is the third corrupted core. It constantly states several random, twisted, and not entirely true "facts" related to history, the current situation, as well as subjective facts about how amazing and handsome it is.

Other cores
The following expresses cores that serve a different purpose altogether: cores that are neither corrupted nor are personality cores.

Party Escort Bot


During the events of Portal, GLaDOS refers to the Party Associate As Chell did not follow GLaDOS' instructions to "place the device on the ground, then lie on [her] stomach with [her] arms at [her] sides" which was described as the "party escort submission position", it is presumed that the Party Escort Bot

The Party Escort Bot is seen briefly in the Portal 2: Lab Rat comic and was only partially depicted, revealed to be a spherical core-based android with a pink eye and a set of arms.

Virtual Reality Assistance and Education Core


The Virtual Reality Assistance and Education Core is introduced in the SteamVR tech demo and guides the player through the virtual reality tutorial. It is very polite and is able to float without any obvious means of propulsion; shortly after finishing its instruction of the player, its battery dies and is immediately picked up by two Bendies driving a golf cart.

The Lab introduced several new personality constructs sent to the player for calibration, voiced by, , , , , , and. They are: • 2

These cores use a model similar to the original Portal&apos;s with no exposed sides (except for one in the back) and a simple design, but with a thicker outline, more detailed eye and multiple different patterns, as well as a crash test logo on the side. The internal mechanism is the main difference, consisting of a sphere with circles of light moving based on how the core speaks.

LEGO Dimensions
Cores act as collectibles in this game, requiring certain characters to do tasks to find them.

An "Amorality Sphere" is featured in this game which carries out functions completely opposite to the Morality Sphere, which also allows GLaDOS to employ dangerous tools (such as electricity) on Batman, Wyldstyle, and Gandalf.

Another core found in Old Aperture claims to be Cave Johnson and pleads for help. Once the player does though, Cave accuses them of "slacking off". The core's eye is also square-shaped compared to other core eyes.

Trivia

 * The bomb model used in Portal 2 is named 'personality_sphere_angry' within the game files, suggesting the Anger core was to make an appearance in the sequel.
 * The bomb model also possesses various typical personality core animations that can be viewed in the Model Viewer in the Authoring Tools. These include a stationary animation, a test animation where the core aimlessly looks around, and an angry animation where it twitches violently.


 * In early screenshots released prior to the Portal 2 E3 teaser trailer, the texture of personality cores were yet to receive detailing and minor scratches, as the textures of the plating were matte white. Since then the textures have been greatly improved, and compared to Portal, the Cores from then to the retail version have a wider range of emotions.


 * Poker Night 2 features a bounty price by GLaDOS called the "Paranoia Core," who behaves similarly to the Fact Sphere describing numerous events as well as being paranoid.


 * Where the corrupt cores are first encountered in Portal 2, another core is being held above to illuminate them, moving weakly which confirms it is active. This core never makes another appearance and has no lines. Upon closer inspection inside reveals that it is an Adventure Sphere reskin, with the eye aperture constricted.


 * Personality cores that serve basic tasks are surprisingly nice and polite, including, the Oracle Turret, and , proved by their voice lines, proof being that one of them refers to Chell as "lady".
 * But free-thinking cores (such as Wheatley, Adventure Core) do not.


 * The morality core has one dot on each side, and it's the first core to be detached and incinerated. The curiosity core has two dots (although on only one side), and it's the second core to be detached. The intelligence core has three dots on each side, and the anger core has four.