And the military.
Intel was not founded by the military. Zilog was not founded by the military. TI was not founded by the military. AMD was not founded by the military. Microsoft was not founded by the military. Apple was not founded by the military.
The government (with the possible exception of one particular agency) tends to run behind the state of the art in IT. The state of the art is determined by international competition between private entities.
An amusing article popped up recently which claimed the government actually had an IBM 7074 still in use. Supposedly, it was running a legacy app that was being screen-scraped by a Java application running on more modern hardware.
However, the story lacks credibility. How would you ever keep the beast running? Where are the spare parts? Where are the customer engineers? And how to justify the electric bill?
Turns out, it was more than likely a 7070 emulator running in software on a modern z/Architecture mainframe. That's bizarre enough.