I've worked on military CPU replacement in the past for a subcontractor. We were upgrading an early 60s avionics set built from, get this, AND, OR and NOR gates. The most complex part was a 4 bit shift register - pretty wild. So I know a bit about this.
The major problem with using components newer than the mid-90s is that they are so sensitive to radiation. Not EM, but Alpha particles and other cosmic rays. Its prohibitively expensive to rad-harden (radiation harden) sub-100nm chips and when that is achieved the yields are so low that the cost balloons even more.
Radiation hits my cause the rare BSOD for you, on a nuclear armed aircraft its may show up as a MCOD - mushroom cloud of destruction.
"In 2005 he underwent the Debakey procedure, which he pioneered, to treat the aortic dissection he suffered."
The old saying of, "Doctor, heal thyself!" definitely does not apply to Dr. DeBlakey./salute and godspeed.
Slashdot Mirror
I've worked on military CPU replacement in the past for a subcontractor. We were upgrading an early 60s avionics set built from, get this, AND, OR and NOR gates. The most complex part was a 4 bit shift register - pretty wild. So I know a bit about this.
The major problem with using components newer than the mid-90s is that they are so sensitive to radiation. Not EM, but Alpha particles and other cosmic rays. Its prohibitively expensive to rad-harden (radiation harden) sub-100nm chips and when that is achieved the yields are so low that the cost balloons even more. Radiation hits my cause the rare BSOD for you, on a nuclear armed aircraft its may show up as a MCOD - mushroom cloud of destruction.
"In 2005 he underwent the Debakey procedure, which he pioneered, to treat the aortic dissection he suffered." The old saying of, "Doctor, heal thyself!" definitely does not apply to Dr. DeBlakey. /salute and godspeed.