I can see you all see the same things I do.
mbhydro
Looks like there is some IBM token ring mux units hung from under the center of the first picture.
We where still installing these about 3 years ago, often the plans for a new store would have nothing removed but new stuff added.
So we had been pulling cat 5 right beside the IBM stuff.
Then the IT guys would show up and ask what the IBM stuff was for.
Even once all the cash registers and deli scales switched to cat 5, one customer deli kiosk (a place to pre order you deli stuff) used the IBM cable.
Now they are doing a lot of wireless equipment.