Re: Anyone
Had a similar set up when I was in college in the 80s.
We had printed templates (basically grids) for writing down the hex machine code. Then depending on the boards we were working on, would sit there manually entering the hex directly to the board, then cross your fingers and hit the run button! Or into the EPROM, then onto the board and run.
UV lamp in a box at the ready, when we inevitably needed to wipe and try again.
EEPROMs made life a little easier later on, once we got some.