Program Species

BASIC  

The simplest of the programs. Basics were created by the programmer Kevin Flynn, to perform tasks on the Grid and keep it running smoothly. For example, Beck is a mechanic living in the city of Argon. He along with his friends keep the other programs' vehicles tuned up to ensure safe transportation across the Grid.  

ISO  

ISOs are an extremely controversial subject anywhere on the Grid. CLU and the other firewall programs view them as a virus- glitches- that "pervert the Grid". ISOs emerged from the Sea of Simulation beginning in the mid 1980s. Flynn was ecstatic- he didn't create these programs, the Grid did. He viewed them as an advancement in artificial intelligence and did what he could to conserve them. However, when Flynn returned to speak with CLU about his progress, CLU turned on him, mortally wounding Tron (the protector of the Grid). CLU went on to conquer every city on the Grid, derezzing every ISO he found. Now there are only a few left. It's unknown what kind of special abilities ISOs have, but one thing that makes them stand out from normal programs is a symbol on their upper left arm denoting their gender. [The females have a hexagon and a sideways "T", the males have a hexagon and a ">" symbol on the far right side (of the hexagon).] Genderqueer ISOs have a mixture of the two. ISOs may also have visible circuitry on their skin, a trait Basics and Firewalls don't possess. ISO circuitry is chiefly white.  

FIREWALL  

Firewall programs are CLU's forces. Their circuitry is chiefly red or orange. Tesler, Paige, Pavel, and Dyson are all Firewall programs. CLU is always looking for more soldiers, so there's no limit to how many Firewall programs you can make.

USERS  

Users are people from the real world that have come to the Grid. Usually this happens by accident, like when Kevin Flynn was transported into the old ENCOM system, or when his son Sam came looking for him in Legacy. However, it's possible the secret of the Grid has gotten out to some of their acquaintances.