Nice. In that era we had an even cheaper solution for a multi-user accounting system, the VNA by Advanced Micro Research / the "UnTerminal": https://books.goo

Nice. In that era we had an even cheaper solution for a multi-user accounting system, the VNA by Advanced Micro Research / the "UnTerminal": https://books.google.com/books?id=AlnQ5OJS6XgC&pg=PT167&lpg=PT167&dq=vna+unterminal&source=bl&ots=fcS46ZxES4&sig=a7M14fRPWpXf8wZ2e6hAi2wQO7E&hl=en&sa=X&ved=0ahUKEwigtduGofTNAhWGmR4KHQCyCJkQ6AEIJjAD#v=onepage&q=vna%20unterminal&f=false https://books.google.com/books?id=AlnQ5OJS6XgC&pg=PT167&lpg=... So basically no networking, just multiple video cards and keyboard interfaces in a single 386 PC (it used RS-422 to move the video signals to the screens). In SCO Xenix this worked extremely well. No networking needed.