Holy Deja Vue Batman! I used these systems when I went to University. Thank Hoff for posting the link to the hobby version of Clearpath, it will be cool to go back over 40 years. Wonder how much Algol I really remember.
I learned Algol on a Burroughs B5500 at University of California at San Diego. I really liked programming in Algol, and I liked Pascal even more (I learned UCSD Pascal).