it's just a little bit different https://campustechnology.com/Articles/2019/08/28/Distance-Learning-Without-Computers.aspx
In the 80's I took DL correspondence classes in schools such as Open University without computers. All books and assignments were by correspondence.
I've been doing the correspondence thing on-and-off from the 80s till now. I took work-related stuff, like the Credit Institute - and everything from computer programming to photography and languages (they sent books and CDs - tapes in the old days) . I like it. I wish more schools still offered it.
