You can however, pick any subsystem of an RTOS and represent that in some fashion.
There are some RTOS functions that are implemented by internal threads \[to be provided].
Schedulers and Operating Systems
The state of a thread can then be easily represented with this simple state transition diagram:
\[to be provided]
In order to be a real-time OS, an RTOS must support
SCHED_FIFO. That is, strict priority scheduling. The thread with the highest priority runs.... Period. The thread with the highest priority is always associated with the TCB at the head of the