Yeah. I just found manuals for both of them! http://www.simulogics.com/archive/public/docs/dg/sw/os/aos/093-000249-02__SED_Text_Editor_Users_Manual_AOS_and_AO

Yeah. I just found manuals for both of them! http://www.simulogics.com/archive/public/docs/dg/sw/os/aos/093-000249-02__SED_Text_Editor_Users_Manual_AOS_and_AOS-VS__1980-1984.pdf http://www.simulogics.com/archive/public/docs/dg/sw/os/aos/0... http://www.simulogics.com/archive/public/docs/dg/sw/os/aos/093-000197-03__SPEED_Text_Editor_Users_Manual_AOS_and_AOS-VS__1976-1980.pdf http://www.simulogics.com/archive/public/docs/dg/sw/os/aos/0... And dozens and dozens of other old DG manuals. And an online Nova simulator, and binaries for downloadable DG simulators apparently based on SimH (which I thought did PDP/ VAX).