Amiga - Workbench, MacOS and Windows 95
Three different OS on my Amiga. Native Workbench 3.9, Shapeshifter MACOS 7.5 and PC-Task Windows 95. Win95 are slow because of HDF file I am using. I am working on FAT partition on my CF harddrive. Mac is fast, even for games, its almost native and it has own partition. My Amiga is A1200, 060, 64 MB RAM. And what can your computer do? ;)