On Sun, May 25, 2008 at 8:23 AM, Bernd Petrovitsch <bernd@xxxxxxxxx> wrote: > On Sat, 2008-05-24 at 15:39 -0400, Greg Freemyer wrote: > [....] >> I also think it is useful to realize that UNIX was basically designed >> for systems that have a MMU even though low-end systems in the late >> 70s / early 80s did not have them. > > The first ones (also before) didn't have a MMU and the first versions of > "Unix" ran on it. > >> I believe there were implementations that ran on 286 based hardware >> without MMUs way back then, but they were very kludgy and definately >> not the design target for UNIX. > > Of course they were as that was common hardware in the 60s and > (earlier?) 70s. > Bernd, I think you have your history a little off. (I may too.) Per Wikipedia: The Intel's 286[1], introduced on February 1, 1982, (originally named 80286, and also called iAPX 286 in the programmer's manual) was an x86 16-bit microprocessor with 134,000 transistors. iirc, the DEC PDP computers were some of the first computers to have UNIX on them. Greg -- Greg Freemyer Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer First 99 Days Litigation White Paper - http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
