Earliest language (high school): BASIC, operating on a time-shared (Honeywell?) minicomputer using punch-tape program storage and a teletype for input / output.
Earliest college language: FORTRAN on a time-shared CDC Cyber. Initially wrote software using a teletype on IBM punchcards, then stood in line to pick up my output from a high-speed line printer. It was quite the thrill the first time I was able to sit down at a VDT and type / run / save my software using a video interface.
Earliest application programming as an engineer: REXX and APL. Three guesses who I was working for. I still look back fondly at APL; it put you in a very different mindset while programming, as opposed to standard structured languages.