A circuit board from the Saturn V rocket, reverse-engineered and explained (opens in new tab)

> it had 112 KB of dual-redundant hand-woven magnetic core memory.

Purely out of curiosity, do we know the amount of memory a modern orbital rocket like the Falcon 9 has?

> This reminds me of this short piece about debugging a live Saturn V

Fantastic link, thank you for sharing.

Thanks! I'm glad you're enjoying the blog. I'm here if you have any questions.

Just to keep everything straight, the AGC that we restored is a totally different computer from the LVDC/LVDA that this board is from. The AGCs were on the Command Module and the Lunar Module that went to the Moon's surface, while the LVDC was onboard the Saturn V rocket.

The AGC was one of the very first computers to use integrated circuits, while the LVDC used hybrid modules. The LVDC used triple-redundant circuits with voting while the AGC was not redundant. The LVDC was a 26-bit serial computer, while the AGC was a 15-bit computer. The LVDC was built by IBM, while the AGC was built by MIT and Raytheon.

It's interesting that the two computers were different in so many ways.

the audio is often so bad tho, I can't understand what they are saying half the time.