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Light Years Ahead | The 1969 Apollo Guidance Computer

TNMoC · 2.8M views · 2020-02-04 · 1:21:22

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Overview

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.

On Hacker News

HN calls it mandatory viewing on the AGC, praising the speaker's enthusiasm and the clear account of restartable, robust software design.

Recommended by 11 HN people across 11 months · HN mentions 2021–2026

Topics

History of computingSpace exploration & spaceflightComputer architecture & CPUs
Search by tags
apollo 11agc1202 alarmspaceflight softwarecomputer history

What people said

soferio · 2026-07 · Strong recommendation

For a superb video explaining what the AGC did and what WENT WRONG during the moon landing including the error codes:l, see: [VIDEO]

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isolli · 2024-03 · Strong recommendation

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]

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kzrdude · 2023-11 · Strong recommendation

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.

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Sources

Video by TNMoC, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

Views, duration and playback status refresh separately from the published catalog. When an update fails, existing data remains visible.

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  • SaaS & AI candidates: Topic keywords do not match
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Rule matches identify candidates. They do not guarantee video quality or financial results.

About the library and its sources