Yes, they hold our identities and code on them. A program without a disc can be arrested on sight.

[Tron nods in approval of the choice of render, but furrows his brow a bit at the color.] Some programs wear a helmet, though it's not required.

You... may want to carefully consider your choice of circuits color, though. Red like that shows your allegience to Clu and may attract negative attention. Blue or light green may blend better.

However, if your intention was to infiltrate Clu's ranks, then the red would be fine.