Explain the positioning time for a disk.

- It is also called as the random access time used by a disk to perform operations.

- It consists of time to move the disk arm to the desired cylinder called the seek time.

- The time required for the desired sector to rotate to the disk head is called rotational latency.

- Typical disks can transfer megabytes of data per second.

- Seek time and rotational latency is always in milliseconds.