My second co-op job was at a place that had mostly transitioned from punch cards but they still had a couple of hold outs. They wrote Fortran on special columne

My second co-op job was at a place that had mostly transitioned from punch cards but they still had a couple of hold outs. They wrote Fortran on special columned paper and then the keypunch operator would punch out the cards and the programmer would review the code. The keypunch operator would occasionally catch a typo and fix. While I was there, the programmers started reviewing their code on the CRT and the keypunch operator was typing out the code instead. By my second work term, one had retired along with the key punch operator and that was the end of that era.