920M - an European contemprary of the Apollo Guidance Computer
Curious Marc
curiousmarc3 at gmail.com
Tue May 4 00:02:10 CDT 2021
Quite impressive indeed! I did not know of these machines.
Marc
> On May 3, 2021, at 12:02 PM, Adrian Stoness via cctech <cctech at classiccmp.org> wrote:
>
> 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 |
>>> +---------------------------\ (----( )----------------------------+
>>> \_) ) /
>>> (_/
>>>
>>>
>>
>>
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