This tutorial is prepared for those that need assistance in Disk Scheduling Algorithms. INTRODUCTION In operating systems, seek time is very important. Since all device requests are linked in queues, the seek time is increased causing the system to slow down. Disk Scheduling Algorithms are used to reduce the total seek time of any request. PURPOSE The purpose of this material is to provide one with help on disk scheduling algorithms. Hopefully with this, one will be able to get a stronger grasp of what disk scheduling algorithms do. TYPES OF DISK SCHEDULING ALGORITHMS Although there are other algorithms that reduce the seek time of all requests, I will only concentrate on the following disk scheduling algorithms: First Come-First Serve (FCFS) Shortest Seek Time First (SSTF) Elevator (SCAN) Circular SCAN (C-SCAN) LOOK C-LOOK These algorithms are not hard to understand, b...