
Light Years Ahead | The 1969 Apollo Guidance Computer
About this video
Robert Wills of TNMoC explains the Apollo Guidance Computer hardware and software, then walks through the Apollo 11 landing procedure step by step, including the 1202 alarms.
Why it appears in the archive
HN calls it mandatory viewing on the AGC, praising the speaker's enthusiasm and the clear account of restartable, robust software design.
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From the Hacker News discussion
I suggest watching this excellent presentation: [VIDEO] . He goes in to great depth in explaining how the LEM was in fact capable of landing itself. Automation was widespread in the development and execution of the Apollo program.
Read original comment ↗Mandatory Light Years Ahead | The 1969 Apollo Guidance Computer [VIDEO] 34C3 - The Ultimate Apollo Guidance Computer Talk [LINK]
Read original comment ↗Yeah, a great example is this presentation[1] about the Apollo guidance computer. The guy is really, really into it and it just makes the presentation amazing. [1] [VIDEO]
Read original comment ↗That reminds me of the Apollo guidance computer talk (available on youtube [VIDEO] ). "Everyone" might have seen this one, but if one hasn't, it's a gem.
Read original comment ↗I can't recommend a book, but I watched this video a while ago, and I found it riveting: "Light Years Ahead | The 1969 Apollo Guidance Computer" [0] > Robert Wills introduces the amazing hardware and software that made up the Apollo Guidance Computer, walks you through the landing procedure step-by-step, and talks about the pioneering design principles that were used to make the landing software robust against any failure. [0] [VIDEO]
Read original comment ↗For a superb video explaining what the AGC did and what WENT WRONG during the moon landing including the error codes:l, see: [VIDEO]
Read original comment ↗A bit offtopic but I recently saw a surprisingly interesting talk about the Apollo board computer[0], and it's incredible how carefully they engineered the whole thing. Software hardcoded in the wiring, error correction for every memory access, ability to restart the whole system in any situation without losing state...this thing might have been rudimentary in today's standards, but the quality of the software was a different beast. [0] [VIDEO]
Read original comment ↗The AGC is a fascinating device. It used 60% of the ICs produced in the United States in 1963. If you are interested in the AGC I suggest this excellent video: [VIDEO] .
Read original comment ↗