Final answer:
Preemptive scheduling and time-slice scheduling are two methods that can be used to prevent the no-preemption condition in operating systems.
Step-by-step explanation:
The no-preemption condition in operating systems refers to the rule that a process cannot be forcibly removed from the CPU until it has completed its execution. To prevent the no-preemption condition, two methods can be used:
- Preemptive Scheduling: This is a scheduling algorithm that allows processes to be interrupted and removed from the CPU if a higher-priority process becomes available. The operating system maintains a priority queue, and the process with the highest priority is given control of the CPU.
- Time-slice Scheduling: Also known as round-robin scheduling, this method assigns a fixed time quantum to each process. When a process's time quantum expires, it is removed from the CPU and placed at the end of the queue, allowing other processes to be executed.