The first floppies where 8", single sided, single density and were lade for punch card substitute: the 80kB capacity was then equivalent to a rack of 1000 80 columns punched cards. That was in the early 1970's. Before that, there was 14" amovible HDD, with a capacity of 2.5 MB, made by several manufacturer, IBM, CDC... The DRI CP/M80 then CP/M86 were nothing but vaporware, only the MP/M86 (multitasking variant of CP/M86) never had a real existence. When Microsoft bought DRI, they were only able to add some bugs to a perfectly healthy OS. Sadly, they were a lot better in marketing, and they took over the market. You know the rest of the story :-( Best regards,
Jean-Louis Oneto Envoyé depuis un mobile Samsung -------- Message d'origine -------- De : Jim Seymour <[email protected]> Date :05/04/2014 21:05 (GMT+01:00) A : [email protected] Objet : Re: [libreoffice-users] Re: Microsoft Revisits the '80s With MS-DOS, Word for Windows Source Code, On Sat, 05 Apr 2014 13:57:48 -0400 James Knott <[email protected]> wrote: > Kracked_P_P---webmaster wrote: > > On 04/04/2014 05:56 PM, CVAlkan wrote: > >> Not sure if my recollections are correct, but I don't believe > >> either DOS (before 2.x) or the DOS version of Word were written > >> by Microsoft. I seem to > >> recall that both were purchased and re-branded. > > DOS was bought from Seattle Computer Products and it was originally > intended to be a hardware test system, while waiting for CP/M-86, > rather than a proper OS. > > Do not remember 8 inch ones. I remember 10 inch, and then the 5.x > > inch ones. [single sided and then double sided] > > > > The first floppies, as invented by IBM, were 8". There never were > 10" floppies. > > 8", 5-1/4", then 3-1/2". The first Winchester drives were 10", IIRC. DOS *was* originally designed and written by SCP, but I do not recall it being a "test" system. Digital Research was essentially ignoring the new Intel processors, and the people that formed SCP finally got tired of waiting for something that showed no signs of ever happening, and created what became DOS. That was half of a double-screw up by Gary Kildall, who formed and led DRI. The 2nd screw-up (this story is apocryphal) was him leaving visitors from IBM to meet with his wife, rather than him. IBM decided DRI was not serious, stopped in to see Gates, Gates bought "DOS," and the rest is history. So is DRI. I still have a well-thumbed and somewhat yellowed CP/M 1.4 User's Manual on my bookshelf :) Says "Distributed by Lifeboat Associates" on it. Anybody remember them? Regards, Jim -- Note: My mail server employs *very* aggressive anti-spam filtering. If you reply to this email and your email is rejected, please accept my apologies and let me know via my web form at <http://jimsun.LinxNet.com/contact/scform.php>. -- To unsubscribe e-mail to: [email protected] Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted -- To unsubscribe e-mail to: [email protected] Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted
