On Thu, 15 Apr 2021 at 18:30, Jim Hall <jh...@freedos.org> wrote: > > The "MS-DOS was a copy of CP/M" story is a myth. They both referenced > other operating systems, and likely Tim Paterson referenced the CP/M > manual when implementing some internal features of Q-DOS to create > PC-DOS (then MS-DOS) but there's been code comparisons and binary > analysis by several folks, and none that I'm aware of concluded that > DOS was a copy of CP/M. > > Here's one example: > https://www.embedded.com/was-dos-copied-from-cp-m/
I have looked into this in considerable depth and that article you cite is based on a misunderstanding of the claims. Nobody is saying that Paterson or SCP _copied code_ from CP/M into QDOS. That is not the claim here, so that oft-cited article wastes a lot of effort debunking the wrong claim based on misunderstanding the allegation. The claim is that Paterson re-implemented, from scratch, cleanly and with his own code, the _design_ of CP/M. -- Liam Proven – Profile: https://about.me/liamproven Email: lpro...@cix.co.uk – gMail/gTalk/gHangouts: lpro...@gmail.com Twitter/Facebook/LinkedIn/Flickr: lproven – Skype: liamproven UK: +44 7939-087884 – ČR (+ WhatsApp/Telegram/Signal): +420 702 829 053 _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
