Shiiiit, that's because the music gear is both more fun, has more style, and will actually exist and work well in 20 years. The computers will be gone in like 3 years, so why bother talking about them?
But, to answer your question, I use nearly every OS there is: Linux (Arch, Ubuntu, Debian, Fedora), NetBSD, FreeBSD, OSX, and Windows. I have to use all of these to test different things on various projects. As I get more into writing books though this narrows down to Ubuntu, OSX, and ArchLinux.
I understand the gearhead mentality (I was raised by one), and I actually enjoyed reading about the music equipment. I just didn't expect it because when I hear "Zed Shaw" I think "programmer", not "musician", even though I realize that few people, even programmers, are one-dimensional. I guess it's just one of my many mental biases. Thanks for putting my question to rest.
But, to answer your question, I use nearly every OS there is: Linux (Arch, Ubuntu, Debian, Fedora), NetBSD, FreeBSD, OSX, and Windows. I have to use all of these to test different things on various projects. As I get more into writing books though this narrows down to Ubuntu, OSX, and ArchLinux.