920M - an European contemprary of the Apollo Guidance Computer

[Adrian Stoness]

ooo thanks for sharing

On Mon, May 3, 2021 at 1:50 PM Dr. Erik Baigar via cctech <
cctech at classiccmp.org> wrote:

>
> Some additional remarks: The 920M is par of the 900 Series from
> Elliott (later Elliott Automation, GEC Marconi Avionics, BAe Systems)
>
> ...maybe interesting to note, that apart from the 18bit 920M and
> related machines, there is a series of 12 bit ones which have a
> simmilar (but not identical) instruction set.
>
> ...even one member of the family had 13 bits.
>
> ...these machines where used in applications, where accuracy was
>     less important (autothrottle compputers, air data systems) and
>     size/weight/power consumption was paramount.
>
>
> Sorry, by accident the footer from my work email was with the
> first posting - all the project is entirely hobby work and not
> related to the business I am working for...
>
> That is my private signature ;-)
> >
> >                                ''~``
> >                               ( o o )
> > +------------------------.oooO--(_)--Oooo.--------------------------+
> > | Dr. Erik Baigar                             Inertial Navigation & |
> > | erik at baigar.de           .oooO              Vintage Computer      |
> > | www.baigar.de            (   )   Oooo.      Hobbyist              |
> > +---------------------------\ (----(   )----------------------------+
> >                              \_)    ) /
> >                                    (_/
> >
> >
>
>