RTOS specifc Questions

RTOS vs GPOS 

GPOS:- no time boundation,task hasnt got any time limit to
finish work. 

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An RTOS is a special case of GPOS. 
1. In RTOS every task must have a priority.
2. Pre-emption is a must feature.
3. Priority Inheritance is must otherwise priority 
inversion may cause unbounded wait.

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RTOS:- time boundation, task has to complete work within
given time frame. For this preemtive scheduling is must.OS uses Round

Robin scheduling. 

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GPOS USES A MONOLITHIC ARCHITECTURE WHILE 
RTOS USES A FLAT MEMORY ARCHITECTURE.