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A "hard" real-time operating system (hard RTOS) has less jitter than a "soft" real-time operating system (soft RTOS); a late answer is a wrong answer in a hard RTOS while a late answer is acceptable in a soft RTOS. The chief design goal is not high throughput, but rather a guarantee of a soft or hard performance category.
Comparison of real-time operating systems. This is a list of real-time operating systems (RTOSs). This is an operating system in which the time taken to process an input stimulus is less than the time lapsed until the next input stimulus of the same type. Mostly Texas Instruments C2800, C5500, C6000 and OMAP DSP cores.
RTLinux. RTLinux is a hard realtime real-time operating system (RTOS) microkernel that runs the entire Linux operating system as a fully preemptive process. The hard real-time property makes it possible to control robots, data acquisition systems, manufacturing plants, and other time-sensitive instruments and machines from RTLinux applications.
Real-time computing. Real-time computing ( RTC) is the computer science term for hardware and software systems subject to a "real-time constraint", for example from event to system response. [ 1] Real-time programs must guarantee response within specified time constraints, often referred to as "deadlines". [ 2]
Zephyr ( / ˈzɛf ər /) is a small real-time operating system (RTOS) [ 7] for connected, resource-constrained and embedded devices (with an emphasis on microcontrollers) supporting multiple architectures and released under the Apache License 2.0. Zephyr includes a kernel, and all components and libraries, device drivers, protocol stacks, file ...
NuttX is a free and open-source Real-Time Operating System with an emphasis on technical standards compliance and on having a small footprint. Scalable from 8-bit to 64-bit microcontroller environments, [2] the main governing standards in NuttX are from the Portable Operating System Interface and the American National Standards Institute (ANSI).
A real-time operating system is an operating system that guarantees to process events or data by or at a specific moment in time. Hard real-time systems require exact timing and are common in manufacturing, avionics, military, and other similar uses. [29] With soft real-time systems, the occasional missed event is acceptable; this category ...
FreeRTOS is a real-time operating system kernel [3] [4] [5] for embedded devices that has been ported to 35 microcontroller platforms. It is distributed under the MIT License . History