None of those names sound right to me. Back in those days someone could write some software, put it on a floppy, xerox some instructions and put it all into a b

None of those names sound right to me. Back in those days someone could write some software, put it on a floppy, xerox some instructions and put it all into a big plastic sandwich bag. Our computer store would then put it on a shelf to sell. That was how it was done back then. I remember calling a couple of companies and talking directly to the developer. Most of the products you mention came much later. It wouldn't surprise me if there isn't any information about those early products - except among a few old timers on blogs like this one. And some products were strictly regional - depending on which computer stores were visited by the developer. But I appreciate your effort to help the OP.