Started my programming in 1975 on a pdp using fortran 4 - used punched cards for storing and running significant programs. Used something called I* to edit binary files. A fluorescent light with "crash" in big letters on it came on from time to time. Could play a few games including moon lander and some star trek game. Then it was RTFM and only a few people were knowledgeable and the run debug cycle was slow - 1 day per iteration - errors printed out on big sheets of paper. Everything seems pretty easy after that...