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A comment on July 20, 1969: One Giant Leap For Mankind (2013). Parent comment

Re:July 20, 1969: One Giant Leap For Mankind (2013) by ArkyBeagle on Sunday July 20, 2014 @11:13PM (#8062339)
Jack Garman had hand-written down all the trouble codes on a "cheat sheet". He's the one who called "go". I am not even sure if the MIT software team knew what 1201 and 1202 were.

The AGC was one of the first to use priority multitasking. The 1201 and 1201 faults were indication that lower priority tasks were getting yanked.

See "Moon Machines". Seriously.

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Re:July 20, 1969: One Giant Leap For Mankind (2013) by dm2 on Sunday July 20, 2014 @11:15PM (#8062342)
What would be an example of a lower-priority task in this situation?

A couple of links to the videos you mentioned:

http://www.sciencechannel.com/video-topics/space-videos/moon...

The above is probably one of the most informative 2 minute videos I've ever seen.

https://www.youtube.com/watch?v=DWcITjqZtpU&list=PL7E6922816...

"there were no specs, we made it up" "if you screwed up you got a stack of papers that was 2 feet thick" "the overall memory for the Apollo guidance computer was 72 kilobytes"

https://www.youtube.com/channel/UClDdlBdSzrWIUijnnUDXobw

https://www.youtube.com/channel/UCNpdHqZ5OmFOnICpZz4Mflw

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Re:July 20, 1969: One Giant Leap For Mankind (2013) by XorNot on Monday July 21, 2014 @12:30AM (#8062489)
Clicked into the first one and got a thing about the insulation between the tanks - the 3rd video in the playlist was about them hiring surfboard makers to do the honeycomb insulation between the fuel tanks, since they had more experience working with the materials in the heat conditions.

Just another kind of "the space program was amazing" thing - the sheer diversity of people who got hired on to contribute is continually surprising. An amazing tribute to the pragmatism of NASA under the conditions.

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Re:July 20, 1969: One Giant Leap For Mankind (2013) by ArkyBeagle on Sunday July 20, 2014 @11:16PM (#8062346)
Oops - display and keypad. See above :)
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Re:July 20, 1969: One Giant Leap For Mankind (2013) by ArkyBeagle on Sunday July 20, 2014 @11:16PM (#8062345)
Display and keypad as I recall.

The problem was actually a deployment problem. The checklist for configuring the computer left a diagnostic mode on that sucked up a lot of CPU.

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