Many universities have systems like that. Banks too. Probably true of many early adopters: they built systems that worked and didn't rewrite them simply for the sake of having something new.
The company is long out of business, but every so often someone finds some of their products at a garage sale or industrial auction or it comes in a box of other things on eBay. When they search for manuals on the product they often find me because by coincidence someone asked about those products on a forum I frequent and that conversation tends to come up in the first page on google.
It's amazing how many really old systems are still running after decades without change and no one gives it a thought until something breaks. I've often wished I had a list of their old customers so I could contact them and offer my services to upgrade old controls.
[sigh] another business opportunity missed.
There's nothing wrong with batch processes. They are often easier to reason about than having a system where everything can change in real time.
Sometimes you want real time. Sometimes (many times) a daily batch is just fine.