What did many people mean by computer 386 486 586 a few years ago?

Although the data is ancient, it is very meaningful, because the earliest computer is called microcomputer for short, and then multimedia 386 486 586 appeared. Multimedia means it can perform a variety of tasks, such as audio and video, as well as some stand-alone or local online games. I still remember that the earliest game was red alert starcraft 1, the second generation. When StarCraft came out, there was the Internet, and the name of the computer room was changed to an online club-the computers in the Internet cafes advanced by leaps and bounds. Very memorable. Of course, these numbers represent the CPU model.