Well there's a simple explanation right? When you're growing up grappling with issues like homosexuality, disability or just feeling like an outsider - spending more time at a computer provided an escape from a judgemental and unwelcoming world. This is the same reason so many of us are night owls well into adulthood, cause we grew up feeling safer when the adults were asleep and we could maintain our personal boundaries.

There is a shoet way to say it: Inattentive type (type I), Hyperactive type (type H), and Combination type (type C)

I routinely describe myself as ADHD type C

There is a way to distinguish them ! There is Innatentive type, Hyperactive-impulsive type and Combined type

It looks like Linux got much friendlier as of lately, and requires much less figuring out, but ymmv and you can of course run into issues, unfortunately.

Nowadays we usually have the benefit of being connected to the internet from something other than the computer we're fiddling with, it was quite hard to troubleshoot modem issues when you need that modem to work for the internet connection.