What type of operating system is specifically meant for handling real-time applications without buffer delay?

A Real-Time Operating System (RTOS) is specifically designed to manage hardware resources and execute tasks within strict timing constraints, ensuring that processes complete within a defined time frame. This capability is crucial for real-time applications, such as those found in embedded systems, robotics, automation, and control systems, where timing is essential for functionality and safety.

RTOSs prioritize tasks based not only on their importance but also on their urgency, which means they can provide immediate responses to events. This eliminates buffer delays that might occur in other types of operating systems, making RTOS highly suitable for applications where performance and timing predictability are critical.

In contrast, distributed operating systems manage a collection of independent systems and coordinate their functions to appear as a single coherent system. Network operating systems focus on managing network resources and communication between computers but do not necessarily guarantee real-time task execution. Virtual operating systems typically abstract hardware resources for running multiple environments but are not designed to meet the stringent timing requirements of real-time applications. Thus, the focus on timing and immediate task execution underscores why a Real-Time Operating System is the most appropriate choice for handling real-time applications without delay.