Remember the good old days of DOS, when you could open command.com with a simple text editor and find the line with the dreaded "Abort, Retry, Fail" message.
Unwary users were so supprised to see "You're F!*%ed" or some such. And no ammount of rebooting would solve the problem.
The field programmable analog array (FPAA) when it was first offered to the market about 15 years ago did not seem to capture the imagination the way the field-programmable gate array (FPGA) had done before it.