I'm not an expert on Apollo flight software, but comparing the role of flight software in the avionics of 60s era spacecraft isn't really a fair comparison. Fro

I'm not an expert on Apollo flight software, but comparing the role of flight software in the avionics of 60s era spacecraft isn't really a fair comparison. From what I recall there were a number of FSW faults and overloads just prior to the lunar landing, which had to be manually (literally flipping a switch) reset and overridden. Today software is the "complexity sponge" of most aerospace systems - I recall some figure that in the F-4 (a 60's era figher), about 4% of moving surfaces were under software control. These days on contemporary fighter jets and spacecraft that figure is in the 90% range.