Also the first real programming language I learned, on an early version of DOS (3.?). I wrote a utility to encode data which was burnt to Eeproms for VHF radio's (fixed base units) I don't remember the details but it was cool to write a tool to solve a problem. Fun times.
Same here - I still have my Turbo Pascal 5.0 install disks!
same. I even have my first disk of turbo pascal programs, written by my grandad, on github: https://github.com/byronka/turbopascal
I was recently able to recover some games I wrote in the late 80's, early 90's and to get some of them to function correctly I had to re-learn Pascal. That too was a rabbit hole.