I guess both for both space and military applications you want reliability and consistency rather than the latest-and-greatest.
This must be why the Colonial Marines in Aliens seem to use sentry guns controlled by pre-80286 laptops - in the year 2176!
(one of these, apparently)
I wouldn't say they don't need it so much as they can work around the limited compute power.They dont need lot of processing power for space missions.
I wouldn't say they don't need it so much as they can work around the limited compute power.
What a brutal environment "outer space" is. Us Earthlings are very well protected by that ionosphere.
Latest and greatest would die an early death due to all the radiation hammering from all over the place once you leave Earth. Then people die or at the least, billions of dollars are wasted.
I wonder how fast a FMC is in commercial aircraft?
I wonder how fast a FMC is in commercial aircraft?
Each project is different but you don't find any 3 Ghz CPUs in space or in aircraft. Modern fighter jets use surprisingly old and slow processors as well as very strange looking custom operating systems that are truly real time as is the software running on it. You find a lot of Ada and a special cut down version of C in these systems.
They are quite fast. But they are also below the earths different shields. Regular Xeons can be found.
I'd honestly have no idea what you could find in a "modern" F-22 Raptor or F-32 Joint Striker Fighter. I'd expect double or triple redundancy x86 and something like a JSF could even have ARM cores since its a coalition fighter.