An operating system with timeliness and high reliability is a real-time operating system.
Real-time operating system (RTOS) means that when external events or data are generated, it can accept and process them at a fast enough speed, and the results of its processing can be controlled within the specified time. The production process or the operating system that responds quickly to the processing system, schedules all available resources to complete real-time tasks, and controls all real-time tasks to run in a coordinated manner. Providing timely response and high reliability are its main features.
In a real-time system, there must be several real-time tasks. These tasks are usually related to certain external devices and can respond to or control the corresponding external devices, so they have a certain degree of urgency. Real-time tasks can be classified from different perspectives.
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