Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify?

A disk address specifies the following information:

1. Track Number: Indicates the specific track on the disk where the data is stored. A track is a circular path where data is recorded.

2. Sector Number: Identifies the particular sector within that track. A sector is the smallest unit of data storage on a disk and typically contains a fixed number of bytes.

3. Cylinder Number: In the case of hard disk drives with multiple platters, the cylinder number specifies a set of tracks located at the same position on different platters.

4. Head Number: Specifies which read/write head should be used to access the data if the disk has multiple platters.

Together, this information allows the disk drive to locate the specific record on the disk.