On Mon, Nov 30, 2015 at 1:45 PM, Fred Cisin <ci...@xenosoft.com> wrote:
> Oversimplified remedial tutorial: >>> Ideally, the system reads a sector, does what it has to do with the >>> content, and goes back for the next one, and can read every sector of the >>> track in a single revolution. >>> >> > From: "Paul Koning" <paulkon...@comcast.net> > >> Your writeup was aimed at floppy disks, but interleave may also appear on >> hard drives. I don't remember it in reasonably modern systems, but it >> shows up on CDC 6000 systems. >> > > On Mon, 30 Nov 2015, Mike Stein wrote: > >> ----- Reply ----- Definitely an issue with IBM PC/XTs and clones; I >> recall testing every new combination of HD and controller for most >> efficient interleave before I delivered to the client. >> > > 1) Are there any examples newer than PC/XT 5160? > > Although, obviously, completely hidden from the user, is it still used on > anything "modern"? > (Should ALL verbs be changed to past tense?) > > 2) Is it used on anything besides spinning rust? > > Probably outside the domain of the question: The DPS8-M had configurable core memory bank interleave (even/odd addresses); I would hazard a guess that this improved bandwidth on double word read/writes. -- Charles
