[OFFER] Various DR-DOS, CP/M and Caldera OpenDOS versions

Hello everyone.

A while ago I came across this: http://ftp.uni-bayreuth.de/pc/caldera/

This directory (from a university server, I presume) contains some OSes not available in WinWorld as of now. They are:
- Caldera OpenDOS 7.01
- CP/M 2.2 (unknown OEM)

The directory also has DR-DOS versions 7.02 and 7.03, but WinWorld already has them, so I didn't include them in the above list.

You may want to take a look at these documents: http://ftp.uni-bayreuth.de/pc/caldera/info/faq.txt and http://esca.atomki.hu/paradise/dos/opendos-en.html

Hope this helps to add to the WinWorld abandonware library.


  • There is no such thing as a non-OEM version of CP/M. Digital Research never sold it retail. They only licensed it through OEMs, who ALWAY customized it for their specific hardware.

    That download appears to be their OEM adaption source code.
  • I'll try to upload Caldera OpenDOS and the OEM CP/M 2.2 sometime soon. However you already have the two DR-DOSes so there's no need for me to upload those.

    Looks like I also found the DR-DOS source code files: https://archiveos.org/drdos/ (don't know how authentic this is, but to me it seems legit.)


    Direct link to DR-DOS source code: http://sourceforge.net/projects/archive ... p/download
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