I am going to look back a bit futher :- http://www.lysator.liu.se/tolkien-games/entry/hobbit.html It was orignally released on the Specturm about 1982 but was later released on other platforms including the Macintosh as The Hobbit Software Adventure It appear to have most of the required features.

Generally when a new operating system is launched it takes time for hardware manufacturers to catch up. They will oftern launch with a good enough driver whilst the developers re-learn everything in order to get the most out of the hardware on that OS. The trouble with Vista is it has moved the goal …

OK so we missed one DIP DOS which is an MS DOS 2.11 compatible ROM embedded in the Atari Portfolio/dip Pocket PC

DR-DOS also has quite an involved history, having changed hands several times and giving rise to OpenDOS and other derivatives. (I noticed the other day that some are now sometimes called EDR-DOS.) There are some comprehensive DR-DOS fansites that give the details. I have done a major update to the …

Commodore DOS? Didn't all the Commodore machines come with a ROM-based BASIC interpreter that had hooks to load programs from an IEEE-something-bus? It was not a Disk-Operating-System as such. This is a difficult one. Does the BASIC ROM or the CBM-DOS count? They could certainly be considered an …

Tandy dos and ms dos and pc dos are not the exact same. Was Tandy DOS like Compaq DOS or Toshiba DOS which where MS DOS with device driver tweaks only or was it very different? I haven't yet done TRS-DOS (Tandy Radio Shack - DOS) which is very different. 4dos counts as an os as it attaches on your …

Atari DOS - When transfering the graphical timeline to the new website I forgot to transfer that. Good spotting. I will do that shortly. I have done a significant update but realised when doing the update I have no relationship between Atari DOS and Apple DOS in the graphical version which is a …

Never put a section live when you are tired. CP/M section is now corrected with all the info rather than just a place holder page. CP/M has a great history but CP/M-86 was definately too late. By the time it was delivered MS-DOS/PC-DOS was already at version 2 and established on the x86 platform. …

My understanding was Tandy DOS was MS DOS relicenced or at least that is what the documentation would seam to indicate. http://www.oldskool.org/guides/tvdog/documents.html I would be very interested in knowing when Tandy DOS diverged from MS-DOS or if it had significant differences ot the OS level. …

I am actually interested in all operating systems but for this thread I am perfectly happy to limit the discussion to operating systems that run in a similar fashion to MicroSoft DOS (MS-DOS) or attempt to obtain some level of binary compatability with MS-DOS. (I missed FreeDOS from my original list …

I have been putting together a history of operating systems and would like your thoughts as to how many different DOS like operating systems have been released. My initial work as come up with these DOS Clones . http://www.oshistory.net/metadot/index.pl?id=2208 This covers MS-DOS (inc PC-DOS), DR- …