... Time Operating Systems (RTOS) are often embedded, meaning a integral part of a system inside another device. They have very little user interface capability. Real time operating systems like their name implies, respond to an input immediately. "Real time operating systems are capable of processing data so quickly that the results are available to influence the activity currently taking place." [Computer Science 5th Edition, CS French, Ashford Press Gosport, 1996] Real time operating systems guarantee a certain capability within a specified time constraint; these time constraints are usually very rigid. If the system does not conform to this time limit, the system ultimately fails. They are used for various purposes; a few of these are medical equipment, industrial control systems and car computers. Parallel Systems have more than one processor to carry out a single job. The systems often carry out one single job using the resources of both processors of the machine; however some ...

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