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The Grid
Geographical information
RegionTron system
Points of InterestTron City
Argon City
Other information
DesignerKevin Flynn
OwnersKevin Flynn (1983-1989)
Clu 2 (1989-2010)
Behind the scenes
AppearancesTRON: Evolution
TRON: Betrayal
TRON: Legacy
TRON: Uprising
Kingdom Hearts 3D: Dream Drop Distance

The Grid is a vast part of the Tron system, programmed by Kevin Flynn. Often referred to by Flynn as his "digital frontier", the Grid was made to provide an experimental platform where all forms of research could be carried out at unparalleled speeds. Perceived time on the Grid is measured in cycles and run at a pace far greater than time perceived in the real world, thus allowing anyone immersed in the computer environment to perform the same functions in a fraction of the time it would take them otherwise.

Much of the Grid consists of a flat, dark platform with glowing blue, cyan, or white ribbons of light covering it in a vast latticework. Within the Grid itself lie a number of cities, the most populous being Tron City, a metropolis modeled on a real world city which hosts a diverse range of programs. The programs carry out all the day-to-day tasks involved in running the system. On the periphery of the Grid lies the Outlands, an inhospitable region where most programs could not venture without flying or using specially coded ground vehicles.

In TRON: Betrayal and TRON: Evolution, the Grid's largest ISO population lived in Arjia City, located on the Codestream Nexus. Evolution also introduced a distant settlement, Bostrum Colony, which was the exclusive home of a faction of ISOs and like-minded Basics.

In TRON: Uprising, other known cities on the Grid include far-off Argon City, its neighbor and original settlement Purgos, and a large metropolitan area called Bismuth of which only the Light Rail station was seen in the show. Concept art for a location used in one episode was labeled with the name "Gallium City," but the city was never named in the episode, though a map in another episode showed the location of a small city called Gallium which was even further out in the Outlands than Argon City.

The Grid is surrounded by the apparently endless Sea of Simulation, once the birthplace of the ISOs, now corrupted by an isomorphic virus which, while not harmful to Basics, does not allow new ISOs to develop.

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