As a relatively early adopter of RPG in the early 1970s, I learned to program in a vacuum. There were no programming classes in those days, and no computer science departments at universities — just some mainframe Cobol guys, some assembler, and a little Basic used by the time-sharing services. Structured programming had not been conceived. There were glimmerings of things to come in works by Parnas and Dijkstra, but we had no idea how to apply them to RPG II. RPG was unique in ...

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