Were microsoft, apple, google thinking they had discovered the next ibm, or yahoo when they were working on their idea?

Or were they just working their idea as best they could? creating a revenue stream as quickly as possible and not worrying about trying to be bigger than the previous biggest.

I don't think any of the recent companies, google, twitter, facebook, thought that they had an idea that could create companies bigger than any previous ones. they were nothing but an idea that had potential and something people could understand and use in fun/new/helpful ways. And a team who could deliver that idea.