More on mystery system

On 2010 Jul 26, at 5:46 PM, Chuck Guzis wrote: Some searching for fairchild test systems brought up this for the Fairchild Sentry system: https://www.chiphistory.org/product_content/lm_fairchild_sentry -400_1970_intro.htm https://www.chiphistory.org/landmarks/lm_Fairchild_sentry-400_1970/ ip_fairchild_sentry-400_1970.htm May not be of much help for your search, but interesting otherwise just to see the processor used. Uses yet another one of those little-known processors from the late-60s/early-70s when everybody decided they had to make their own minicomputer - in this case the Fairchild FST-1 (or is it something else re-badged?). Good photo of the blinkenlight front panel in the brochure (2nd link above). Rather early for the specific system you are looking for, but it might be the origins of it. 24-bit processor. There are some code snippets there of Fairchild's "FACTOR" language ("Fairchild Algorithmic Compiler - Tester Oriented") that bear some similarity to the snippet you presented.