"A program invented by a Finnish computer hacker and handed out
free in 1991 cost investors in Microsoft $11 billion (£6.75
billion) this week."
"Despite its humble origins, Linux is now seen as a threat to
Microsoft's top-end Windows NT system. The share price of
Microsoft, the world's biggest company, slumped 3 per cent alone on
Thursday after IBM, the industry's early pioneer, announced it
would start selling Linux with its corporate computer networks - an
area presently dominated by Microsoft's Windows NT."