Difference between Hard and Soft real-time systems

Question

Describe the difference between Hard & Soft real-time systems?

Answer 1

A hard real-time system has to complete critical tasks on time. This goal requires that all delays in the system be bounded from the retrieval of the stored data to the time which it takes the operating system to finish any request made of it. A soft real time system where any critical real-time tasks obtain priority over other tasks & retains that priority until it completes. As in hard real time systems kernel delays have to be bounded