RTOS - Real-time Operating System

A Real-time Operating System (RTOS) is an operating system designed to meet the specific requirements of real-time systems, where processing and control tasks must be completed within predefined and deterministic time constraints. RTOS is crucial in applications such as embedded systems, industrial automation, medical devices, automotive systems, and other environments where timely and predictable execution is essential.

While RTOS may not be a primary focus of the Security+ exam, understanding its basic principles and its role in real-time systems is valuable. Consider how the characteristics of an RTOS, such as deterministic timing and task scheduling, impact the security considerations in safety-critical and embedded systems.