Gents, Do remember that I'm fairly confident this is a DD machine (the described daughterboard and v1.4 ROM are present), so the ability to write +SD+ might not be of concern. It would be nice if the PC could do both, though..
So is there a difference between SD and DD CP/M - Osborne disk images? I mean, other than the obvious storage capacity issue wherein the DD holds roughly 2X the data. If there's such a thing as an "SD" image, can it be written to a DD floppy and still operate correctly? On Mon, Aug 17, 2015 at 6:09 PM, Fred Cisin <ci...@xenosoft.com> wrote: > Any sense of what PC models / controllers are capable of this task? >>> >> On Mon, 17 Aug 2015, Chris Osborn wrote: > >> Anything that will run ImageDisk or Teledisk will work. It doesn’t >> necessarily have to be one of those computers, you could pull the 360k >> drives from one of them and hook them into a “newer” PC that still has >> 5.25” 360k floppy support. There’s usually 360k floppy support on >> motherboards up to the Pentium III era. >> > > There are plenty of PCs that can run ImageDisk and/or Teledisk that CAN > NOT do single density (FM). Neither of those pieces of software alter the > hardware capabilities of the machine. > > I personally use an old ABIT KT7A-RAID board which has a controller which >> is capable of writing single-density/FM disks. I’ve got a half-height 5.25” >> 360k drive in it connected as drive B and a 3.5” 1.44M as drive A. I’ve >> used it quite often to create disks from my original TRS-80 Model I which >> can only do SSSD. I’ve also used it to make disks for the Kaypro and even >> make disks for my HP-150 which uses single-sided 3.5” disks. >> > > It is good that YOUR machine has FM/single-density capability. > And, yes, if your machine can do TRS-80 Model 1, then it can do Osborne > single density - those two machine use almost the same physical format > (except for D.A.M. issues on TRS-80). The first day that I saw an > Osborne, I looked at sectors on those disks using Superzap (Model 1 > Newdos), and Trakcess. > > -- > Grumpy Ol' Fred ci...@xenosoft.com >