I wonder if it has anything to do with the "Upgrade" to Pentium processors and reprogramming in C
http://tech.slashdot.org/article.pl?sid=08/07/14/1934228
"Flightglobal has a report about the
upgrades being made to the B-2A Stealth Bomber, which include Pentium class processors, JOVIAL code rewritten in C, and fibre channel hard drives. The Register, as usual, makes its usual light of this event with a tongue-in-cheek news item noting that the upgrade
drags Stealth Bomber IT systems into the '90s."