Man, does that bring back memories! I think I read a copy in the late 70's, though I had already seen the Unix sources in '75-'76, as Harvard had the first cop

Man, does that bring back memories! I think I read a copy in the late 70's, though I had already seen the Unix sources in '75-'76, as Harvard had the first copy of Unix outside of Bell Labs. Sources printed on upper-case-only DEC PDP-11 line printers with strike-throughs for upper-case designations, and all... It was quite a revelation to see an entire operating system in so few lines of code. I had only explored some of Multics and TOPS-10 (the PDP-10 operating system) sources at that point, and those were monstrous by comparison (especially Multics, I guess that being the whole point of Unix as counterpart...).