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Isomorphic Algorithms (better known as ISOs) were a race of programs featured in the TRON franchise. They were programs that spontaneously evolved on the Grid, as opposed to being created by users.

Background

ISOs differed from Basic programs in their appearance and capabilities, but their uniqueness lay in their code base. While regular programs conform to the rigid structure defined by their users, ISOs had evolved to become independent beings, complete with a genetic code of their own that even Kevin Flynn could scarcely comprehend. This inner structure of their code would potentially have allowed ISOs to develop beyond the capabilities of regular programs.

The ISOs were first discovered by Flynn and CLU in 1984 near Tron City. Their existence was considered a miracle by Kevin Flynn; however, CLU considered them be an obstruction in his mission to create the perfect system. As the ISO population grew, they attempted to integrate with the Grid's population, but met resistance from Basics, and thereafter formed their own colonies. Subsequent to his betrayal, CLU initiated a genocidal assault on the ISOs which was later referred to as the Purge. By the time of TRON: Legacy, Quorra is the last known ISO alive, after Kevin Flynn saved her from the Purge.

After Quorra left the Grid with Sam Flynn, no ISOs were thought to have remained in the system.

Physical appearance

TronLegacy1684

Female ISO Symbol

All ISOs appear physically identical to humans and other programs, but there are some fundamental differences between ISOs and other beings. ISOs have a glowing symbol on their arm and some depictions also show other markings on their skin. Their color circuitry is usually white, but the Bostrumites, such as Gibson, modified their circuitry to glow bright green.

The symbol in their arm represents their gender. The female ISO symbol is a hexagon, followed by a "T" shape, while the male ISO symbol replaces the cross with a sideways "V" shape. In TRON: Evolution - Battle Grids, the male/female choice is distinguished by each of these symbols.

Known ISOs

  • Ada
  • Calchas
  • Gibson
  • Giles
  • Jalen (Later reconfigured into the Virus Abraxas)
  • Ophelia
  • Quorra (The last known ISO)
  • Radia
  • Unnamed ISO (Named by the player in TRON: Evolution - Battle Grids)

Trivia

  • The male and female ISO symbols each include a hexagon, a symbol widely used on Kevin Flynn's Grid and possibly symbolic of organic life, since the hexagonal benzene ring is present inside the four building blocks of DNA. The sideways T is the logical symbol for implication; thus the female symbol could be read as implying organic life. The symbols also resemble the traditional symbols for male and female, ♂ and ♀, stylized with a hexagon for the circle, and the protruding arrow and sideways T each detached to stand separately.
  • Flynn speculated that ISOs differed from Basics through possessing free will, which could not be programmed. However, many Basic programs have been seen to possess initiative, choice, and both will and ability to change, leaving Flynn's criteria questionable.
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v - e - d
TRON
Media
Movies and shows: TronTron: LegacyTron: UprisingTron: Ascension

Video Games: Tron (video game)Tron: Deadly DiscsTron: Solar SailerTron: Maze-a-TronDisney UniverseTron: EvolutionTron: Evolution - Battle GridsKingdom Hearts IIKingdom Hearts 3D: Dream Drop DistanceDisney INFINITYDisney INFINITY: 2.0 EditionDisney INFINITY: 3.0 EditionTron 2.0Adventures of TronDiscs of TronSpace ParanoidsArmagetron AdvancedBeamWarsGLtronTRON Run/r
Music: Tron: Legacy (soundtrack)Derezzed

Disney Parks
Test TrackTRON Lightcycle Power RunTRON Realm, Chevrolet Digital Challenge

Entertainment: ElecTRONica
Firework: World of Color
Halloween: Tomorrowland Party Zone

Characters
AbleAbraxasAdaAlan BradleyAnonBartikBeckBitBlack GuardBodhiCastorCutlerCLUCLU 2.0CromCyrusDaft PunkDumontDysonEd DillingerEdward Dillinger, Jr.GageGaltGemGornHopperISO • Jarvis • KellerKevin FlynnKobolLinkLomoxLora BainesLuxMaraMaster Control Program (MCP)MoogPaigePavelPerlProgramQuorraRamRed GuardRinzlerRoxSam FlynnCommander SarkShawTeslerTronYoriZed
Episodes
"Beck's Beginning" • "The Renegade" • "Blackout" • "Identity" • "Isolated" • "Price of Power" • "The Reward" • "Scars" • "Grounded" • "We Both Know How This Ends" • "The Stranger" • "Tagged" • "State of Mind" • "Welcome Home" • "Rendezvous" • "No Bounds" • "Terminal"
Locations
Center CityFlynn's ArcadeInput/Output TowerEnd of Line ClubThe GridArgon CityFlynn's Safehouse
Objects
Vehicles: Light CyclesRecognizerRectifierBattle TankSark's Aircraft CarrierLight RunnerLight FighterSolar SailerThrone ShipGrid LimoMilitary VehicleLight SpeedsterList of Tron vehicles

Weapons: Identity DiscBatonList of Tron weapons

See Also
ENCOMFlynn Lives

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