In the mid 80s, my high school used a similar setup on a TRS-80 with I think 8 serial terminals for their COBOL classes, replacing a Burroughs minicomputer with

In the mid 80s, my high school used a similar setup on a TRS-80 with I think 8 serial terminals for their COBOL classes, replacing a Burroughs minicomputer with an actual cardpunch and card reader. It was cool hitting college already knowing vi, a shell, and how to write crap to other student's ttys.