[rescue] Personal progressions (was: what to do with a dec alpha 255)

Geoffrey S. Mendelson gsm at mendelson.com
Thu May 31 16:37:50 CDT 2007

On Thu, May 31, 2007 at 05:20:46PM -0400, Carl R. Friend wrote:
>     Then there's humour -- like when Intel claimed it's technique of
> "Extended Memory Access" (or whatever they called it) on the 32-bit
> architectures to address more than 32 bits' worth of address space
> was "all new" (and probably tried to patent it) when, in point of
> fact, it was a re-warming of the *original* notion of paging where
> the memory-management hardware was there to increase the amount of
> physical memory a machine could have even though the logical address
> space didn't change (see the pdp10s starting with the BBN pager for
> the KA, the entire -11 line, DG Novas and Eclipses, and lots of other
> 16-bit machinery in the '60s and '70s).

This was disscused before on this list. The first COMMERICAL machine
to have paging was the IBM 360/67. DEC was working on it for the PDP-10,
but did not sell it until later. One of the people who worked for DEC at 
that time joined the discussion and commented that it was a 
managment decsision.

In 1977 I was working for a few months as a microcomputer
consultant/systems analyst/programmer, and thought of adding paging
hardware to the 8080 system I was working on, but like many of my ideas
of that era, it never went beyond the thinking of it stage.


Geoffrey S. Mendelson, Jerusalem, Israel gsm at mendelson.com  N3OWJ/4X1GM
IL Voice: (07)-7424-1667 U.S. Voice: 1-215-821-1838 
Visit my 'blog at http://geoffstechno.livejournal.com/

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