Haven't heard of that particular case, but the Therac-25 caused six people to receive 100 times the amount of radiation intended, killing three of them. There

Haven't heard of that particular case, but the Therac-25 caused six people to receive 100 times the amount of radiation intended, killing three of them. There were a number of issues, many UI-related, but what I found most interesting was that the prior Therac machines, which ran the same software, had hardware interlocks that allowed them to operate safely, masking software bugs. When the hardware interlocks were removed in the Therac-25, the buggy software was able to make the machine misbehave dangerously. Citation: http://en.wikipedia.org/wiki/Therac-25 http://en.wikipedia.org/wiki/Therac-25