Well, in 1990 I created a first FIDOnet node in USSR and became first regional coordinator of FIDOnet there. Next I graduated from Novosibirsk State University and opened my first business (ISP in Novosibirsk). Then in 1995 I moved to Moscow and became a first CTO of a first Russian stock exchange. Since that time I launched several startups and changed multiple CIO/CTO jobs at different Russian and international companies. In 2018 I understood that I fed up with Putin’s cleptocracy and moved from Moscow to Switzerland, now working as an enterprise architect for a large insurance business.
1) ES 1022 which was a clone of IBM/360 and SM-4, a clone of PDP-11
2) Maximus BBS was the most popular software to run a BBS in USSR in late 80s, in addition to FifoNet utilities for sending/receiving/reading messages. In 80s there were just a few BBSes but their number grew exponentially starting 1990.
3) Unfortunately OGAS ceased to exist before my time. I haven’t seen Soviet equivalent of ARPAnet either.
4) I‘m in Mathematics, not Physics and never visited Dubna. Although I had a tour once of accelerators in Novosibirsk Institute of Nuclear Physics, it was very cool experience.
When I was an intern at the Institute of Catalysis I was introduced to Yulii Khariton, chief designer of Soviet nuclear program. I don‘t remember details of that meeting unfortunately…