He might have been thinking of this issue: https://archive.org/details/byte-magazine-1980-12

There's an article by David Liebling who worked for Infocom. There's also an article by Scott Adams in the issue.

On page 7 is an add for Shugart! Later renamed to Seagate!

The ads in there are great. That issue actually predates the IBM PC by a year (and my own exposure to microcomputers to any great degree by about the same length of time). So this is serious blast from the past before things standardized in any but very broad-brush ways.

An adventure game issue in 1980. https://archive.org/details/byte-magazine-1980-12