920M - an European contemprary of the Apollo Guidance Computer

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 | >> +---------------------------\ (----( )----------------------------+ >> \_) ) / >> (_/ >> >> > >