jfruh writes: "In the world of high-frequency stock trading, every millisecond is money. That's why many firms are getting information and sending big orders not through modern fiber-optic networks, but using line-of-site microwave repeaters, a technology that's over 50 years old. Because electromagnetic radiation passes more quickly through air than glass, and takes a more direct route, the older technology is seeing something of a renaissance."
"The number of Unix installations has grown to 10, with more expected."
-- The Unix Programmer's Manual, 2nd Edition, June, 1972