[Slingshot]

I use Debian Linux as my primary operating system on my main computer. It's a great general purpose Linux distribution, and is extremely focused on open source software. I also have TAILS on a USB stick for when I want to use native computer systems (such as at the library, a friend's house, the coffee shop, etc.).

I have Windows XP (supplied by @mothered) on another computer to play older video games and what not.