as far as i am concerned the "elephant in the room" has been so long obscured that it has been forgotten about ... that is the state of alarms and displays when computer gives up. why is no one talking about this? why is this not regulated? this matter underlies so many major accidents both A and B and yet it is not being addressed. there NEEDS to be a STANDARD display and alarm state for computer disconnect . it is ridiculous to expect pilots to troubleshoot IT systems before they can start on aviate navigate communicate. how is it possible that aircraft are allowed to dump control without silencing every alarm that might possibly be spurious and blanking every display that may be incorrect. what is going on !