Please let's not add yet more military fetishizing to IT. "Military power" should refer to things like military engines, not totally unrelated electronic performance boost modes.
IT overlap is mostly because computers and the internet are military technology. Mainframes, IC's and the transistor itself were bankrolled by US military money.
The internet and GPS, the core technologies of our time, are both direct descendants of the US military.
You may not like it, but the entire IT and tech field are built on US military tech
Civilian and military engineering history are intertwined. The tech transfer doesn't go one way only.
In ancient times both mercantile and military incentives propelled the design of ships. Is fair to say the whole ship building field built on military tech?
You're just picking a point in time and calling that the beginning; every one of those things is based on previous tech with no military background.
Even if it were true that in the distant past a thing had a military application/funding, there's no reason to use their terms for new things which aren't military in nature. No commercial liner calls it's full speed "military power". It's just cosplay at this point.
If you go far enough back all of our technology arises from fire and the wheel.
There's plenty of room to debate how much of our technology came from the military, but I don't think naming is a big deal.
Take the word "screen" for example. The original meaning was a partition to protect from heat. Many of these were fabric, and led to "magic lantern" shows done with shadows. The word was repurposed again for the projection era. And yet again for tube TV's and beyond.
If you told somebody from 100 years ago to look at the screen they would have no idea what you're talking about because the original meaning is lost.
That's why I don't think it matters whether we use military terms for computer stuff. It doesn't have its original meaning anymore.
The internet and GPS, the core technologies of our time, are both direct descendants of the US military.
You may not like it, but the entire IT and tech field are built on US military tech