The caption on that photo says it's “memory”, but I recognize the internals that are exposed in the photo through the open side panel – they are very much like the IBM disk drives that I worked on when I was in the US Navy, in the early '70s. Those hoses you see toward the left really are hoses – for the high-pressure hydraulic system that positioned the read/write heads on that beast. A couple of times I worked on disks that had developed a hydraulic system leak. What a mess! Large quantities of sticky, purplish fluid were all over everything – and in one case, when a pinhole leak had developed in a hose, the skinny stream of fluid had cut right through wires and printed circuit boards! The failure modes for electronic systems were a little different back then :)
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