ContikiW
Contiki
EWS-UXW
EWS-UX
HelenOSW
HelenOS
Inferno (operating system)W
Inferno (operating system)
IRIXW
IRIX
OS2000W
OS2000
Plan 9 from Bell LabsW
Plan 9 from Bell Labs
RIOT (operating system)W
RIOT (operating system)
RTEMSW
RTEMS
VxWorksW
VxWorks
Windows CE 5.0W
Windows CE 5.0
Windows NT 3.1W
Windows NT 3.1
Windows NT 3.5W
Windows NT 3.5
Windows NT 3.51W
Windows NT 3.51
Windows NT 4.0W
Windows NT 4.0