The Code: Silicon Valley and the remaking of America by Margaret Pugh O'Mara is a pretty book worth checking out.

* https://www.penguinrandomhouse.com/books/534709/the-code-by-...

* https://blogs.lse.ac.uk/lsereviewofbooks/2019/07/18/book-rev...

Also goes into things like why Boston (New England) had some promise but ended up fizzling out (or at least not reaching the same scale as SV).