Timeline for What prevents a commercial jet from electronically "resetting" the way a computer sometimes does?
Current License: CC BY-SA 4.0
6 events
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Jan 5, 2020 at 3:30 | comment | added | Peter Cordes | @forest: Modern embedded systems do still have a watchdog timer that would reboot if the system locked up, instead of just sitting there like a desktop so a user can write down the error code (or notice that it crashed in the first place). But yes, the quote in this answer makes it sound like a primitive garbage-collection scheme. However, the Apollo 11 AGC did have a watchdog timer (they called it the "Nightwatchman" :P, and was one of a few things that could trigger a reboot: How did the Apollo guidance computer handle parity bit errors?) | |
Jan 4, 2020 at 11:42 | comment | added | forest | This seems more like a comment, since there's really no comparison between an ancient computer with magnetic core memory and rope memory and exceptionally limited computing requirements, and a complex modern machine with hundreds of microprocessors with incredibly complex ISAs and millions of lines of code written in multiple programming languages. | |
Jan 4, 2020 at 1:49 | comment | added | hobbs | @Fattie sure it would. Better to do nothing for a moment, then do the right thing, than to do the wrong thing immediately. | |
Jan 3, 2020 at 17:36 | comment | added | selectstriker2 | If an error is detected, it is better in many cases for the system to be inop temporarily while it reboots rather than be stuck in a faulted state. | |
Jan 3, 2020 at 17:25 | comment | added | Fattie | but this would not at all apply to the fly by ethernet controls that operate the actual control surfaces, surely? | |
Jan 3, 2020 at 14:37 | history | answered | Eugene Styer | CC BY-SA 4.0 |