Embedded RTOS System
![](https://scienceprog.com/wp-content/uploads/2011/07/multiple_task_freertos_demo_on_atmega128.jpg)
RTOS ( Real-Time Operating system) is a programming environment that interfaces hardware and desired tasks. RTOS usually has a built-in set of services (interfaces and functions) that allow interaction between tasks and hardware. Because most low-level functions are performed by RTOS, the realization of programs becomes much easier. What is the difference between Embedded RTOS System and a regular OS (Operating System)? The main difference is that RTOS performs tasks according to reaction time on one or another event. Many microcontrollers have the ability to support one or another Real-Time Operating System.