Basically the industry was already shipping million computers yearly at the beginning of 80s and >100M units at the end of 90s. So I wouldn't say it's all that small numbers here
This is true for 1st world, which is just about Billion people. In the rest world (now about 5 Billions), computers was not seen much, before end of 90s.
You may not believe, but I know lot of people older than 40, who does not have any pre-smartphone computer experience. And their smartphone experience also limited, they don't use any downloaded apps, only what preinstalled and simple enough for them.
Imagine, large share of civilization have opportunity to meet AI, but have not any digital experience before.