NJ got snubbed in this submission. We still have tons of independent diners (around 450 according to this article: https://www.npr.org/2024/04/01/1241959475/new-jersey-diners-... )
https://www.tastingtable.com/1203923/best-diners-in-new-jers...
While it’s possible that Unicode was also conceived at a diner, you’re likely thinking of UTF-8. Unicode was from a decade earlier.
I would not make a good fact-checker :(
Also, the Bendix Diner is closed, likely permanently, because of fire code violations.
I'm thinking of the Chatterbox in Ocean City, NJ, for instance. Grace Kelly used to be a waitress.