[KPGv2]

We might've been caught on different parts of the wave. I checked Ngrams out of curiosity

https://books.google.com/ngrams/graph?content=TUI&year_start...

Basically it was never used, then it was heavily used, and then never used, and then in the early 00s it took off again.

That'd explain why you used it, I never did, and now young kids are.

[marssaxman]

Thanks for looking that up! It makes sense, of course - the line starts to drop in 1984, with the release of the Macintosh, and hits a trough around the launch of Windows 95.

It's not a term I recall hearing at all when I started using computers in the mid-'80s - all that mattered back then was "shiny new GUI, or the clunky old thing?" I really thought it was a retroneologism when I first heard it, maybe twenty years ago.

[rjmunro]

I don't think that search is very valid - the TUI group travel companies are likely much more mentioned than Terminal User Interface. They are pretty big around the world and have an airline, cruises, hotels etc.

[CRConrad]

Yeah, but Preussag only changed its name to Touristik Union International in 1997[1], so I think the user interface interpretation clearly predates the travel agency one.

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[1]: https://en.wikipedia.org/wiki/TUI_Group