Wow, some really impressive lists so far. Mine doesn't have anything really exotic. Only counting things I actually used for a decent period, things capable of doing interesting things to, such as installing software, extensive configuration, writing programs for. Also only counting stuff I actually used for a daily tool for some period. Yea I have used a Mac, but a few hours on someone else's machine doesn't count. Game consoles and embedded OSes in home entertainment gear don't really count. OSes spun up for a few days in a VM really don't count.
Coco 1/3 Disk Extended Color Basic OS9 Level I/II (Microware, not Apple) C-64 BASIC Tandy Pocket Computer (can't remember which one now and I carried the darned thing for several years) MS-DOS / Windows 3.x / Win9x Windows NT (3.x through 7) Linux / GNU / X (too many variants to bother listing them all. Yggdrasil, then mostly RedHat family, now Devuan and PCLinuxOS) Cisco IOS Solaris (on a Sparc 20 with four CPUs I picked up cheap with a pair of 20" displays. Was totally sweet.) Palm OS Linux / Android (Different enough to count as a different OS) OpenBSD
(Score: 2) by jmorris on Wednesday February 21 2018, @10:00PM
Wow, some really impressive lists so far. Mine doesn't have anything really exotic. Only counting things I actually used for a decent period, things capable of doing interesting things to, such as installing software, extensive configuration, writing programs for. Also only counting stuff I actually used for a daily tool for some period. Yea I have used a Mac, but a few hours on someone else's machine doesn't count. Game consoles and embedded OSes in home entertainment gear don't really count. OSes spun up for a few days in a VM really don't count.
Coco 1/3 Disk Extended Color Basic
OS9 Level I/II (Microware, not Apple)
C-64 BASIC
Tandy Pocket Computer (can't remember which one now and I carried the darned thing for several years)
MS-DOS / Windows 3.x / Win9x
Windows NT (3.x through 7)
Linux / GNU / X (too many variants to bother listing them all. Yggdrasil, then mostly RedHat family, now Devuan and PCLinuxOS)
Cisco IOS
Solaris (on a Sparc 20 with four CPUs I picked up cheap with a pair of 20" displays. Was totally sweet.)
Palm OS
Linux / Android (Different enough to count as a different OS)
OpenBSD