Answer - 1. It is also called as the random access time used by a disk to perform operations. 2. It consists of time to move the disk arm to the desired cylinder called the seek time. 3. The time required for the desired sector to rotate to the disk head is called rotational latency. 4. Typical disks can transfer megabytes of data per second. 5. Seek time and rotational latency is always in milliseconds.