2 at my desk at home, a desktop and laptop at work, 1 computer in my workshop at home, 1 laptop as a plex server in my camper, 1 as a plex server at home, 1 chromebook as my personal daily carry laptop. Iphone and tablet also always with me. I have other older systems that I keep more for collectors purposes. I have a working Windows 8 machine, a working Windows XP machine, an older laptop with Linux Mint. Various older computers,all the way down to my original 286 I built when I was in middle school, and a Osbourne Executive I got very cheap from a person who found it in a storage locker. Its my prize computer collectible.