You might want to read A Quarter Century of Unix, http://wiki.tuhs.org/lib/exe/fetch.php?media=publications:qcu.pdf http://wiki.tuhs.org/lib/exe/fetch.php?media

You might want to read A Quarter Century of Unix, http://wiki.tuhs.org/lib/exe/fetch.php?media=publications:qcu.pdf http://wiki.tuhs.org/lib/exe/fetch.php?media=publications:qc...