the tron legacy identity disk (chakram);compared to, inspired by, or made from an 8 inch (UNIVAC-1 ?) computer tape reel
painted black in the tape area and inner hub , 16 clusters of 3 blue LED's on each side at hub.

the tron legacy identity disk chakram; compared to, inspired by, or made from an 8 inch  UNIVAC-1  computer tape reel painted black in the tape area and inner hub , 16 clusters of 3 blue LED's on each side at hub.
PROGRAM! ,,click and be recognized
PROGRAM! ,,click and be freed