Comment by Spooky23
There’s a lot of navel gazing around these sorts of analyses. Consider that the entirety of the tech industry exists in its current form due to federal spending.
The Silicon Valley story is well known; the SAGE project really created the classic IBM.
One of the greatest examples is the DARPA VLSI project of the late 70's and 80's. The ROI of that program is crazy.
If you are interested in this time, I 100% recommend the book The Dream Machine which is centered on J.C.R. Licklider but covers most of the people and projects that lead to personal computers. Stripe Press has a beautiful hardcover version of the book, but the font is tiny. I had to switch to an ereader version in order to read it.