I bet I could make a component that would look like a resistor until it received a particular coded series of pulses and then make it “fail” open or shorted.
And I’m not even a sufficiently motivated, determined and patient enemy.
I bet I could make a component that would look like a resistor until it received a particular coded series of pulses and then make it “fail” open or shorted.
And I’m not even a sufficiently motivated, determined and patient enemy.
Very good point.
LOL. I bet you're going to want to pull that post. Draw me a circuit. You've got two pins. Which one is ground?
Ready? Set? Go!
(The chinese don't have to fight us if this is the extent of our education.)
No, you couldn’t, if the test was proper. A proper test would be able to detect stray capacitance, strange forward voltages, power dissipation, etc. generated by the microprocessor as it spun up, worked, and spun down.
The only way a component like that would make it into a reliable system would be for the OEM (read American defense contractor) to give the test sufficient wiggle room, that they could substitute their own substandard parts in the design, and make a killing on government contracts.
Thems the facts, probably won’t like’em.
I see the Chinese as very astute capitalists with regards to this. They know what the American manufacturers did, and they are exploiting the same loop holes.
Improve the tests or just get rid of the computers. That isn’t going to happen. There is no modern jet fighter plane in the sky that can fly without them -— the airframes are far too unstable for a human to manage all the variables.