Nope, not computers. Either video or experiment sensor hookups at some place like CERN. If it was data, there would be pairs of transmit / receive, like this:Not even sure if this is computer related but it is a nice cabling job.
Those are T3 cables (45Mbit/sec leased line) from a datacenter I wired 15+ years ago. These days it is all Metro Ethernet on fiber.