Every time I hear news like this I have to remind myself that 50% of the human race is below average intelligence. Usually when I mention this to someone they say "that can't be true!" Then I know that they are one of the lower half. A fool and his money.....

I use "O/Sen", pronounced "Oh Ess En" (O S N), and have seen many others use the same.
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I have experience running aroung a hundred Beuwulf
machines with around two moniter/keyboard sets.
One simply boots one with the moniter, sets it
running and then moves the moniter/kb to the next
one. This is designed mostly for long times
between reboots, and it can get tedious with a
couple hundred machines, but it works. And you
don't need a switch.