1) In "TRON: Legacy", ISO is an acronym for "Isomorphic Algorithm", a life form that spontaneously emerged, without planning, from the conditions that existed in
the grid at that time.
2) A term for a really really hot chick. This is adapted from the 2010 film "TRON: Legacy" because
Quorra, the last ISO played by
Olivia Wilde, is so unbelievably hot.