Pioneer Succeeds in Developing World's First 16-Layer Optical Disc ( 400 Gig Possible )
And image from the thread....thanks to martin_fierro .
The Hard Drive Coffee Table top is an original 26″ diameter hard drive platter from an early storage device (circa 1970). The center hub of the platter is solid aluminum. The custom-created pedestal is also solid aluminum; a cylinder measuring 5.9″ in diameter and 18.5″ in length. It has a machined top and bottom to fit into the hard drive hub and base, respectively. The base is a solid aluminum 12″ diameter, 1.75″ high round obtained from a now-defunct government laboratory. Four bolts are screwed into tapped holes in the pedestal in order to secure the hard drive platter and the pedestal is press-fit into the base. It is covered with standard 1/4″ table glass. The completed design measures 19.5″ high and weighs 64 pounds.
I would have to chase back thru the IBM archives ...( Not saying it was an IBM made device.)
But This was very early:
*********************************EXCERPT***************************************
I am guessing this is from the RAMAC 350:
The magnetic disk invented by IBM in the early-1950s contained 100 concentric tracks on each side. Each track stored 500 alphanumeric characters, yielding a total storage capacity of 5 million characters. This disk enabled users to retrieve any piece of information directly in less than a second.
Must have been Pentium based.