>>>every kid over the age of 7 when I was in school knew what a google was or better yet, a googleplex. This was also in the 90s so it predates the search engines popularity by a good bit.

Same here, as someone who was in high school in the late 90s and switched from AskJeeves/Yahoo/Altavista to Google around ~2000, part of the appeal was "Somebody named a search engine after the biggest number meme we know? AND it's fast? AND it gives good results? Lemme check this out..."