Not trying to top you all but in 1963 I went to work at the University of B.C. as an operator on an IBM1620. I learned to program in assembler and FORTRAN 1a. FORTRAN was a 2 pass compiler. you would load pass 1 by cards followed by your program followed by pass 2 followed by your program again. I also monitored the ALWAC III a machine with mercury delay memory. We finally upgraded to an IBM7040 with mag tapes and a disk drive the size of a commercial refrigerator. By then I was a systems programmer. I've been through many languages such as algol, B, Basic(several), C, C++, COBOL, JAVA, Lisp, Pascal, PL1, and many assemblers. Worked with various machines from IBM, Honeywell, Intel(Microsoft et al), Digital Equipment, RCA, CDC. I'm now retired and write in C for my own pleasure for windows, Raspberry Pi, arduino. Fortran was the most fun.