Which OS for life critical applications?

“Recently I was a guest at a local hospital for a few days,
staying with a relative. All over, they had portable PC stations
using HP mini desktops mounted to portable stands on wheels, with
LCD displays and pullout keyboard trays. I couldn’t help but notice
what operating system they were using so I took a look. I wasn’t
surprised to see them all running Windows XP. Windows is used
everywhere, so why not?

“Later on, I overheard the doctor who was sitting down at one of
the permanent stations at a desk. He was apparently trying to log
in and check on something, but I heard him ask the nearest nurse
why a particular popup message was getting in the way. She answered
“oh it always does that, just click OK”. Apparently he was able to
click OK and that allowed him to get to what he needed.”

Complete Story