xp, gentoo which i don't use much cos this is my gaming system and an ms-dos floppy for programming my joystick on this computer. on my netbook ubuntu soon to be replaced with gentoo because gnome runs like treacle at absolute zero on it. my phone runs maemo linux too.

had a laptop running vista that cooked itself to death and it was painful and irritating in many devious ways.
oh and first OS i owned would be win95, first used was probably RISC OS or acorn MOS.
Sacman said:
Copland OS...
Cookie for reference...
theres a linux distro or window manager or something thats supposed to emulate the look of copland OS, don't think its very complete though.