Hello... here's some (hopefully helpful) criticism.
Descriptions about shapes seems a little.... sterile. I know that things in the Tron universe actually are mostly geometric shapes of some kind... but descriptions like "gray ring with yellow squares" doesn't really evoke any images for me. Maybe you can flush things out a little more by making some analogy or perhaps describing it's function or something. A very tough thing to do with a Tron fanfic, I know!
I like the concept of a foreign language in the computer. Why shouldn't there be? Very original!
Description of action sometimes doesnt flow very easily. Sentences like "The ones without those triangular objects produced ones and turned towards the woman." kind of tripped me up a little. It seems a little methodical and maybe some kind of not so linear narrative might help with this. The "show me don't tell me" concept.
I thought the description of being on a lightcycle for the first time was good.
You're good at dialog between characters. It was easy to follow and flowed well.
Nice description of what comes out of an I/O node on the other end.
Very good job. Hope my comments helped.