RTOS refers to Real-Time Operating System, while OS is known as the operating system. Most people are already familiar with the OS because this makes sure that computers and other gadgets will work properly. The RTOS is used for certain applications that rely heavily on the accuracy of time. For example, the OS will do tasks differently from the RTOS when it comes to solving different mathematical equations.
The OS will aim to provide the needed answers in a short amount of time while the RTOS will make sure that the response time is always accurate. The OS is more widely used right now. In urban communities, it is normal for people to have a gadget with its own OS. The RTOS is being used more in specialized fields and industries.