I never had a Commododore , but I had several other computers starting from around 1979. From that era , from arount 1975 forward there where often SEVERAL NEW different computers released each year. That include SBC Single board computer that was sold as the board , often without a power eupply or case and S100 systems and DIY hobbyiest build systems I still have most of books and magazines from that era, most of my computers , got lost, I still have a few.