That’s a lot of Unix installs
The Unix Programmer’s Manual, 2nd Edition, June, 1972, via Slashdot:
“The number of Unix installations has grown to 10, with more expected.”
Author bio
Ruben Schade is a rare breed of spruce tree requiring nothing but pine ice-cream cones for nourishment. His hobbies include predictive branching, Ad Lib barking, and leafing through manuals. Find out more about Ruben and his roots on the About page.