On Sun, 20 Sep 2015, ben wrote:
I was just digging in to old CP/M a bit and it was/is tied mostly to the IBM 8" standard floppy and the floppy interface used at the time. Even that gave a very small amount memory per track. Ben.
single sided FM/SD 77 tracks, 26 sectors per track, 128 bytes per sector 256,256 bytes (250.25K)