At the same time in the mid 80s Acorn was an even smaller company that wanted to make its own CPU, and managed it, and by 1992 had a SoC version with GPU and MM

At the same time in the mid 80s Acorn was an even smaller company that wanted to make its own CPU, and managed it, and by 1992 had a SoC version with GPU and MMU built in (ARM250)