What I was taught is that hard real time has a bounded response time: we are always able to respond to an event in less than some specified time T. It doesn't mean fast, just that there is a hard ...

When do you need to use a real-time operating system (RTOS) for an embedded project? What does it bring to the table, and what are the costs? Fortunately there are strict technical definitions, which ...

A real-time system must respect time constraints to ensure that its execution makes functional sense. It must be deterministic, ensuring the execution of system processes a priori. After analyzing the ...

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This fifth lesson on RTOS finally addresses the real-time aspect of the “Real-Time Operating System” name. Specifically, in the video lesson 26, you add a preemptive, priority-based scheduler to the ...

Why external consistency is so important for a hard real-time database. Maintaining a transaction timeline. The impact of a transaction-scheduling policy. A real-time database-management system (DMBS) ...

The actual definition of real-time database versus the abused interpretation used by marketers of real fast database systems. The interplay of transient and persistent memory, and hard and soft ...

Real-time scheduling algorithms determine the order and timing with which tasks execute in embedded systems subject to stringent timing constraints. These algorithms seek to guarantee that critical ...