posted 03-05-2020 01:45 PM               

No better techno-archaeology than Ken Shirriff's Righto blog (even the footnotes are a treasure) for an incredible deep dive into the Saturn V LVDC core memory block.

The Launch Vehicle Digital Computer (LVDC) had a key role in the Apollo Moon mission, guiding and controlling the Saturn V rocket. Like most computers of the era, it used core memory, storing data in tiny magnetic cores. In this article, I take a close look at an LVDC core memory module from Steve Jurvetson's collection. This memory module was technologically advanced for the mid-1960s, using surface-mount components, hybrid modules, and flexible connectors that made it an order of magnitude smaller and lighter than mainframe core memories. Even so, this memory stored just 4096 words of 26 bits.