so those springs take the data back and forth from the CPU to the motherboard, huh? LOL!!!
That's not actually a complete joke... I used to work on terminals back in the 70's that used "magneto restrictive delay lines" as the screen memory. I opened one up once, and it had what looked like springs coiled up in a metal can. I was always having to hike over to the programmers cave with a screwdriver and adjust the tension on those things to keep the screens in sync. And don't even mention the character set "ROM" which was a whole array of individual diodes on one of the circuit boards... ;-)