@BadBob not only do I remember the old bbs systems, I had an employee who ran a couple.
(When my wife was finishing her dissertation, Ohio State libraries had eight dial up lines to access a very limited database of their collections. You could read along as the screen scrolled into the buffer to save your data.)
Also, I used to sell radio control tanks to the folks at CompuServe. They used the tanks to pull in "fish" cables. With the tracks, they could climb over existing cabling in the chases.