The hacker ethos and community as I have described it here long predates the emergence of Linux after 1990; I first became involved with it around 1976, and, its roots are readily traceable back to the early 1960s. But before Linux, most hacking was done on either proprietary operating systems or a handful of quasi-experimental homegrown systems like MIT's ITS that were never deployed outside of their original academic niches. While there had been some earlier (pre-Linux) attempts to change this situation, their impact was at best very marginal and confined to communities of dedicated true believers which were tiny minorities even within the hacker community, let alone with respect to the larger world of software in general.
I could hear all of them, 21 and 22 I wasn’t so sure on, I had to play them back a few times because I wasn’t sure if it was just the fuzzy background noise I was hearing, or the actual tone- but I’ve done these before on ones of… Good quality… I’m 21, inching up on 22, still hear these as clearly as I always have, so I’m not losing my hearing yet- feels like it sometimes though, my right ear doesn’t hear as well as my left so sometimes when people are talking to me, especially when there’s a lot of background noise I turn my head to the right so my left ear faces them. Which I find a little weird because when I fire I fire left handed so all the noise is on my left ear, I’ve even had my left plug fall out on me while shooting, quite often actually when the butt nudges my ear or jaw it wiggles its way out, I’m not complaining though, I like my hearing.