That's a good point. We had computers in our homes a lot of the time, and in schools I believe they were subsidized by tech companies like Apple. The 80s and 90s businesses that I got to see basically had antiquated mainframes and mini computers. The Army had PCs for office use, but the field equipment was VAX or (in the case of our anti-aircraft radar) some obscure form of Unix. That said, you still couldn't swing a cat without bumping it into a CRT.