https://en.wikipedia.org/wiki/Core_rope_memory

https://youtu.be/hckwxq8rnr0?si=S39wdVFKp0hPF12Q

This is what they used in the Apollo Guidance computer system

It is a Read Only no writing memory, which means the interaction is observation only, not manipulation. We do not want it to be accidentally altered
The data is encoded ahead of time by, literally had sewing the data into it with thin string wiring in complex 1/0 Over/Under weaving wiring patterns
The combinations of wires overlapping, or not overlapping creates spots of memory data storage with emergent magnetic mass fields interacting with one another in a pre set configuration

Once you build it, you just look at it in different locations to retrieve the data that you want
You do not hit a button to have a string stop overlapping with another wire
It has to be pre-configed by a person hand sewing the wiring together like a sweater

https://en.wikipedia.org/wiki/Knot_theory

https://en.wikipedia.org/wiki/Reidemeister_move

Basically tying your shoes kids, but lots of ties with lots of shoes...and then those combinations of shoe interactions mix with the other large combinations of shoes, and those combinations...until you only have 1 shoe and cannot find the other missing one.
It is under the bed...
Body problem juggling the wires into enough magnetic mass field complexities that contain enough data points to be ratiod against one another.

To really understand lets reductionism to look at the predecessor

https://en.wikipedia.org/wiki/Magnetic-core_memory

Ferrite Core
Tiny hollow O-Ring shaped Ferrite magnets that wire strings get threaded inside of the hole
How many wires can be fed through each individual hole creating more calculator combinatorial magnet field pyramidal interaction explosions
The magnets the points, the wires the lines, weaving into the future the emergent magnetic fields through the system
The sound waves cannot exist until the air molecule reality forms to travel in/upon?