@thegibson IBM cash registers of old used a version of Token Ring called Store Loop. I was replacing an IBM cash register base on Black Friday and instead of unplugging it from the IBM data connector on the wall (which would self-short to prevent opening the loop) I unplugged it from the back of the register.

Every cash register in the store immediately stopped. Hard.

All the cashiers went "Hey, did your register stop?" I said "Yes, not sure what happened." as I hastily plugged it back in.

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@ColinTheMathmo @gedvondur @TheGibson that made me think of garbage collection, and the similar trade-offs in play there

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Toot.Cat

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