Hmmm, in the '70s is was more like Popular Electronics, which famously launched Microsoft (I wish I'd saved that issue!). And I found the Heathkit catalog to be the most interesting in this direction; heck, they even had an LSI-11 (PDP-11 on a chipset) based computer (https://en.wikipedia.org/wiki/Heathkit_H11).
But it's telling the Sears catalog devoted real estate to a glossary of computer terms (last item in this article); there was a lot of educating to do to develop customers back then. I was also impressed that most of the terms were still in use, even if we aren't using floppies any more.