My first professional dev job was COBOL and it's associated tech, a majority of the stuff we did was banking stuff and at the time it seemed like that's what a majority of the COBOL market took up but I could be wrong
Ah COBOL, oddly enough I started my first dev job in COBOL in the banking industry(I'm in my 30s and started my professional coding career in my 20s), I have mixed feelings about it...it's a weird language but it has it's place, I wouldn't advise anyone to jump into a COBOL career path unless you are doing it for a job and a job alone.
This looks really awesome I've always been curious of mental models so I just ordered a copy from Amazon. Also Gabriel, kudos to your work and DDG, I'm right near DDG headquarters and it's nice to know things like DDG are being created in my area.
This looks really cool, I just recently order a copy of The WOZPAK Special Edition: Steve Wozniak's Apple-1 & Apple ][ Computers on Amazon so this kind of thing looks awesome! Thanks for sharing.