1. A real-time OS has an advanced algorithm for scheduling.
2. A real-time OS is more frequently dedicated to a narrow set of applications
3. Key factors in a real-time OS are minimal interrupt latency.
4. Only certain applications are permitted for the OS.So the tasks will be in the ready queue to execute.Also the data structure implemented on the Rtos also decides interrupt latency.choice of data structure depends also on the maximum number of tasks that can be on the ready list.
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