What is the important aspect of a real-time system or Mission Critical Systems?

A real time operating system has well defined fixed time constraints. Process must be done within the defined constraints or the system will fail. An example is the operating system for a flight control computer or an advanced jet airplane. Often used as a control device in a dedicated application such as controlling scientific experiments, medical imaging systems, industrial control systems, and some display systems.Real-Time systems may be either hard or soft real-time.Hard real-time:Secondary storage limited or absent, data stored in short term memory, or read-only memory (ROM)Conflicts with time-sharing systems, not supported by general-purpose operating systems.Soft real-time:->Limited utility in industrial control of robotics->Useful in applications (multimedia, virtual reality) requiring advanced operating-system features.

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Ajay Ahuja

Oct 19th, 2011

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What is the important aspect of a real-time system or Mission Critical Systems?
A real time operating system has well defined fixed time constraints. Process must be done within the defined constraints or the system will fail. An example is the operating system for a flight control computer or an advanced jet airplane. Often used as a control device in a dedicated application such as controlling scientific experiments, medical imaging systems, industrial control systems, and some display systems.Real-Time systems may be either hard or soft real-time.

Hard real-time:
Secondary storage limited or absent, data stored in short term memory, or read-only memory (ROM)
Conflicts with time-sharing systems, not supported by general-purpose operating systems.
Soft real-time:
->Limited utility in industrial control of robotics
->Useful in applications (multimedia, virtual reality) requiring advanced operating-system featu