Linux is a free, copylefted full-featured Unix for 386 and 486 machines... Posted by gnu6 on Tuesday October 04, 2011 @12:28AM from the books.google.com dept. http://books.google.com/books?id=s-afGNA7fLwC&lpg=PT142&ots=kswXz7mRuE&pg=PT144#v=onepage&q&f=false ( 2 comments | 8 points | on HN )