# The Apollo Guidance Computer: Architecture and Operation by Frank O'Brien

3 Hacker News commenters recommended The Apollo Guidance Computer: Architecture and Operation by Frank O'Brien and 0 criticized it, November 2025 to November 2026. It was recommended in 1 of 13 months.

**Verdict:** Recommended as a detailed technical walkthrough of the Apollo Guidance Computer's architecture and operation, written in the style of a lead engineer guiding a newcomer through the code.

## Why people recommend it

- Walkthrough of assembly codebase (2 comments): "considering the code base is in assembly, I'll gladly welcome a walkthrough" ([source](https://news.ycombinator.com/item?id=50000784)) "It reads like a lead engineer walking a new hire through the codebase." ([source](https://news.ycombinator.com/item?id=50000479))
- Deeper technical detail (1 comments): "is also good and goes into more technical detail" ([source](https://news.ycombinator.com/item?id=50006607))
- Reads like a lead engineer (1 comments): "It reads like a lead engineer walking a new hire through the codebase." ([source](https://news.ycombinator.com/item?id=50000479))

## Alternatives hackers recommend

- [The Soul of a New Machine by Tracy Kidder](https://hackerapproved.com/p/soul-of-a-new-machine.md): 59 recommend
- [The Old New Thing by Raymond Chen](https://hackerapproved.com/p/old-new-thing.md): 31 recommend
- [Accidental Empires by Bob Cringely](https://hackerapproved.com/p/accidental-empires.md): 15 recommend
- [A History of Lisp](https://hackerapproved.com/p/technical-history-book-on-lisp.md): 11 recommend
- [Turing's Cathedral by George Dyson](https://hackerapproved.com/p/turing-s-cathedral.md): 10 recommend

## Where to get it

- [See price on Amazon](https://www.amazon.com/s?k=The+Apollo+Guidance+Computer%3A+Architecture+and+Operation+by+Frank+O%27Brien&tag=hackerapprove-20) (affiliate link)

## Cite as

Hacker Approved, "The Apollo Guidance Computer: Architecture and Operation by Frank O'Brien", https://hackerapproved.com/p/apollo-guidance-computer-architecture-and-operation/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).