Youtube link: https://www.youtube.com/watch?v=xx7Lfh5SKUQ

A fairly in-depth and "dense" C3 talk about the AGC that covers the architecture and instruction set, the hardware implementation, peripherals, and the system & mission software.

Really interesting stuff if you're into retrocomputing and/or computers that got people to the fucking Moon, and if you're not the sort of person who turns into an unskippable cutscene when the AGC is mentioned, you'll probably learn a lot. If you're like me and you are that sort of person, you'll probably enjoy the talk anyhow.

(book tips: The Apollo Guidance Computer: Architecture and Operation by Frank O'Brien for AGC details, and Digital Apollo by David Mindell for a general overview of the automation in Apollo)