"So Richard Stallman decided to create an "open source" version
of the Unix operating system that anyone could modify. His Free
Software Foundation never did get a full Unix out, but they
developed several major programs and pioneered the concept of open
source. It fell to Linus Torvalds this decade to create Linux.
Working with a worldwide network of volunteers, Torvalds created a
full-fledged open-source version of Unix. Now anyone can download
the sources, fix bugs, or add enhancements."
This article heavily praises Linux and discusses Microsoft's
planned tactics against it.