1801BM1-3 were original Soviet micro-processors that used PDP-11 system of commands.
There were also series of SM-1 and SM-2 machines that were using system of commands compatible with Hewlett Packard HP-2000. SM-1 and SM-2 were using Soviet original DOS ASPO software - OS generated by special macro processor for particular hardware configurations.
There were also series of SM-1 and SM-2 machines that were using system of commands compatible with Hewlett Packard HP-2000. SM-1 and SM-2 were using Soviet original DOS ASPO software - OS generated by special macro processor for particular hardware configurations.