On Mon, 11 Dec 2017 09:16:35 -0500 rhkra...@gmail.com wrote:
> > (Did hard disks ever use iron oxide?) > The rigid platters of IBM cartridges and packs (the things you see in computer rooms in films) did have brown oxide coatings. The surface of each 12 inch platter side stored a magnificent 2.5MB, or at least the version I used did. It was used in a system with an embedded DG Nova, and a competitive product of the time used the modern 8 inch floppy discs... -- Joe
