Let me help jog your memory, based on the era you hearken back to:
Lisp, Snobol, APL, raw hexadecimal, raw binary, Algol64, CP/M, Hollerith punch cards (don't forget those metal cylinders you'd wrap a punch card around), pink & yellow paper tape, dot matrix printers w/ fanfold paper, 128 char/min teletypes, modems w/ 2 foam-lined cups shaped to fit a standard phone earpiece & mouthpiece (to annoy someone, you'd tap your fingernails on it while they were typing in a line, causing noise that generated garbage), floppies sized 12" & 8" & 5.25", text-only 80x24 B&W monitors w/ character hiliting for forms, cross assemblers, Rational C, AT&T UNIX Brick, SunOS, AIX, HPUX, ......
Lisp, raw hexadecimal, raw binary, Algol64, CP/M, pink & yellow paper tape, dot matrix printers w/ fanfold paper, 128 char/min teletypes, modems w/ 2 foam-lined cups shaped to fit a standard phone earpiece & mouthpiece (to annoy someone, you’d tap your fingernails on it while they were typing in a line, causing noise that generated garbage), floppies sized 12” & 8” & 5.25”, text-only 80x24 B&W monitors w/ character hiliting for forms, C,SunOS, AIX, HPUX .
Yup, you jogged some I forgot. Plus some micro controller PIC, some SME Card stuff, ISDN lines, router code, serial interface assembly code.
Awww, memories of Pepsi and Snickers bars at 2:00AM in the morning! Good times :) :)
I once worked 36 ours straight doing FIB to Wells Fargo Bank Unix data connections. Sometimes I miss that tingle you get before you are about to pass out.