We used to run an entire lab on these things, including one floating at 4000V inside a perspex cage, controlling part of a C14 accelerator. My understanding wa

We used to run an entire lab on these things, including one floating at 4000V inside a perspex cage, controlling part of a C14 accelerator. My understanding was that although you would flip the disk to boot in to Locoscript, at root it was running on CP/M, albeit with the CCP replaced by Locoscript. It would seem odd for them to re-engineer CP/M functionality - though given that CP/M was rather incomplete as an OS, it would naturally have to touch some bare metal. I never really investigate to check that belief. Is there a reason that you think that it didn't use CP/M?