...to say the very least! From [1], > His fundamental contributions cover diverse areas of computing science, including compiler construction, operating syste

...to say the very least! From [1], > His fundamental contributions cover diverse areas of computing science, including compiler construction, operating systems, distributed systems, sequential and concurrent programming, programming paradigm and methodology, programming language research, program design, program development, program verification, software engineering principles, graph algorithms, and philosophical foundations of computer programming and computer science. Many of his papers are the source of new research areas. Several concepts and problems that are now standard in computer science were first identified by Dijkstra or bear names coined by him. [1] https://en.wikipedia.org/wiki/Edsger_W._Dijkstra https://en.wikipedia.org/wiki/Edsger_W._Dijkstra