The amount of time required to read a block of data from a disk into memory is composed of seek time, rotational latency and transfer time. Rotational latency refers to
Explanation
Key Points
Rotational latency refers to the waiting time caused by the disk's rotation until the desired sector comes under the read-write head for access. It doesn't involve the head moving to a different track (seek time) or the actual data transfer process
Additional Information
Seek time: Time taken for a hard disk read/write head to locate where the data is stored.
Rotational latency / rotational delay / latency: It is the delay for the rotation of the disk to bring the disk sector where data is stored under the read-write head.
Transfer time: Time taken to transfer the data from the disk.
