Hey, taking a whole millisecond to do an addition, that was a sophisticated machine. My first was an Elliott 903 - the baby one. Write program(me) in Elliott Algol, punch same onto paper tape. Feed it into machine with the interpreter loaded. Receive miles of paper tape containing the machine code version (IF there were no mistakes in your Algol code of course). Then stuff that in, enter your data on more tape and out comes the tape containing the data processed. No CRT's no direct data entry - that was computing in the 60's!
P.P.