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Real Time Operating Systems

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ALSO CALLED: RTOS, Realtime Operating Systems, Real-time Operating Systems
DEFINITION: A real-time operating system (RTOS) is an operating system that guarantees a certain capability within a specified time constraint. For example, an operating system might be designed to ensure that a certain object was available for a robot on an assembly line. In what is usually called a "hard" real-time operating system, if the calculation could not be performed for making the object available  … 
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Nucleus RTOS
sponsored by Mentor Graphics
SOFTWARE DEMO: Complex microprocessors lie at the heart of every electronic device and embedded system in use today - from mobile phones to brain scanners. Such products demand sophisticated software to get the job done, and that's where operating systems come in.
Posted: 14 Apr 2009 | Premiered: 14 Apr 2009

Mentor Graphics
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REAL TIME OPERATING SYSTEMS DEFINITION (continued): …  at the designated time, the operating system would terminate with a failure. In a "soft" real-time operating system, the assembly line would continue to function but the production output might be lower as objects failed to appear at their designated time, causing the robot to be temporarily unproductive. Some real-time operating systems are created for a special application and others are more general purpose. Some existing general purpose operating systems claim to be a real-time operating systems. To some extent, almost any general purpose operating system such as Microsoft's Windows 2000 … 
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