The Lions Book
Since source code was available and the license was not explicit enough to forbid it, V6 was taken up as a teaching tool, notably by the University of California, Berkeley, Johns Hopkins University and the University of New South Wales (UNSW). Berkeley distributed a set of add-on program called the First Berkeley Software Distribution or 1BSD, which later became a full-fledged operating system. UNSW professor John Lions' famous Commentary on UNIX 6th Edition was an edited selection of the main parts of the kernel as implemented for a Digital PDP-11/40, and was the main source of kernel documentation for many early Unix developers. Due to license restrictions on later Unix versions, the book was mainly distributed by samizdat photo-copying.
Read more about this topic: Version 6 Unix
Famous quotes containing the words lions and/or book:
“Probably more than youngsters at any age, early adolescents expect the adults they care about to demonstrate the virtues they want demonstrated. They also tend to expect adults they admire to be absolutely perfect. When adults disappoint them, they can be critical and intolerant.”
—The Lions Clubs International and the Quest Nation. The Surprising Years, I, ch.4 (1985)
“A healthy man, with steady employment, as wood-chopping at fifty cents a cord, and a camp in the woods, will not be a good subject for Christianity. The New Testament may be a choice book to him on some, but not on all or most of his days. He will rather go a-fishing in his leisure hours. The Apostles, though they were fishers too, were of the solemn race of sea-fishers, and never trolled for pickerel on inland streams.”
—Henry David Thoreau (1817–1862)