Just wanted to say a huge thanks for posting this. As I kid I looked up to these guys for making badass games, without a lot of thought into what that actually entailed at the time. I haven't though much about Id since then, but now I can look up to those guys again for their innovation, and their ability to leverage the shit out of what was available to them. Awesome post!
"Initializing Doom Operating System"
Good memories. Bonding with my college roommate who with I had nothing in common with, other than a crazy interest in computers.