Timeline for How did restarts resolve parity errors triggered by broken core-rope wires?
Current License: CC BY-SA 4.0
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| Aug 27, 2019 at 18:37 | history | edited | DrSheldon |
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| Jul 31, 2019 at 21:07 | answer | added | DrSheldon | timeline score: 11 | |
| Jul 31, 2019 at 20:50 | comment | added | UncleBod | Maybe @Ken-Shirriff can answer this. He was involved in a project restoring an Apollo Guidance Computer. | |
| Jul 31, 2019 at 20:45 | comment | added | UncleBod | github.com/chrislgarry/Apollo-11 contains the source of the AGC programs for Apollo-11. Maybe it is possible to find something there? | |
| Jul 31, 2019 at 19:43 | comment | added | Wayne Conrad | @orome Many of the AGC programs were under pilot control. They only ran when called for. | |
| Jul 31, 2019 at 18:47 | comment | added | snips-n-snails | Does the AGC do a power up memory check? | |
| Jul 31, 2019 at 17:50 | history | edited | orome | CC BY-SA 4.0 |
Link core-rope memory
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| Jul 31, 2019 at 17:34 | comment | added | orome | So in order for the broken-wire parity error result in anything but endless restarts, the break either has to be transient or reparable (not an option in the operating AGC); or a software handler has to avoid the broken address — right? | |
| Jul 31, 2019 at 17:04 | comment | added | Wayne Conrad | @supercat I agree. I also suppose that if the break is in a program you can simply not use, then you could continue to use the remaining, unbroken programs in the AGC. | |
| Jul 31, 2019 at 16:36 | comment | added | supercat | I wouldn't think a permanent break would be fixed by resetting, but e.g. a mechanical jolt caused a connection to momentarily fail (either self-curing, or fixable by removing and re-inserting a module), resetting could restore the computer to operation. | |
| Jul 31, 2019 at 16:28 | comment | added | orome | @WayneConrad Yes, the paragraph occurs in the context of a discussion of the way in which restarts of the AGC provided a means for continuing to operate in the face of a variety of error conditions (e.g. overloads). | |
| Jul 31, 2019 at 16:25 | comment | added | Wayne Conrad | The quote doesn't seem to me to imply that the reset is curative. Is there more to the source that makes it seem so? | |
| Jul 31, 2019 at 16:01 | history | edited | orome | CC BY-SA 4.0 |
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| Jul 31, 2019 at 15:49 | history | edited | orome | CC BY-SA 4.0 |
Typo
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| Jul 31, 2019 at 15:40 | review | First posts | |||
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| Jul 31, 2019 at 15:37 | history | asked | orome | CC BY-SA 4.0 |