What are the different types of scheduling algorithms used in operating systems?

There are several types of scheduling algorithms used in operating systems, including:

1. First-Come, First-Served (FCFS): This algorithm schedules processes in the order they arrive. It is simple but can lead to poor utilization of resources.

2. Shortest Job Next (SJN): This algorithm schedules the process with the shortest burst time first. It minimizes waiting time but requires knowledge of the burst time in advance.

3. Round Robin (RR): This algorithm assigns a fixed time slice to each process in a cyclic manner. It ensures fairness but may result in high context switching overhead.

4. Priority Scheduling: This algorithm assigns priorities to processes and schedules them based on their priority levels. It can be either preemptive or non-preemptive.

5. Multilevel Queue Scheduling: This algorithm divides processes into multiple queues based on priority and assigns different scheduling algorithms to each queue.

6. Multilevel Feedback Queue Scheduling: This algorithm is an extension of multilevel queue scheduling, where processes can move between queues based on their behavior and priority.

7. Shortest Remaining Time (SRT): This algorithm schedules the process with the shortest remaining burst time first. It is a preemptive version of SJN.

8. Lottery Scheduling: This algorithm assigns tickets to processes and selects a winner randomly. The probability of winning is proportional to the number of tickets a process holds.

These are some of the commonly used scheduling algorithms in operating systems, each with its own advantages and disadvantages.