Similar to RISC_OS
RISC OS
RISC OSMINIX
Minix386BSD
386BSDApache Mynewt
Apache MynewtArch Hurd
Arch HurdAROS Research Operating System
AROS Research Operating SystemAtheOS
AtheOSBerkeley Software Distribution
Berkeley Software DistributionChibiOS/RT
ChibiOS/RTCollapse OS
Contiki
ContikiCP/M
CP/MCP/M-68K
CP/M-8000
CP/M-86
CP/M-86ECos
ECosEmuTOS
EmuTOSEyeOS
EyeOSFreeDOS
FreeDOSFreeRTOS
FreeRTOSFuchsia (オペレーティングシステム)
Fuchsia (operating system)Genode
GenodeGNU
GNUGNU Hurd
GNU HurdGNUの派生
GNU variantsHelenOS
HelenOSInferno (オペレーティングシステム)
Inferno (operating system)JX (オペレーティングシステム)
JX (operating system)