BYTE Magazine, June 1987. Main theme was IBM PS/2.
IBM had a glossy, multipage ad that started like this "In 1981, we introduced the world's most successful personal computer. Here we go again." Turns out, it didn't work as planned.
Worth reading the Editorial, to get a feeling of what was going on at the time.
In the same issue, there was a two-page ad from 3M: "Announcing the world's largest 3.5 inch diskette." The attached image wouldn't fit on it.