[amp_mcq option1=”periods” option2=”sectors” option3=”zones” option4=”groups E. None of the above” correct=”option3″]
The correct answer is C. zones.
A magnetic disk is a storage device that uses a magnetic field to store data. The data is recorded on a thin layer of magnetic material that is coated on the surface of the disk. The disk is divided into a series of concentric tracks, which are then subdivided into sectors. Each sector can store a certain amount of data.
The zones on a magnetic disk are used to improve the performance of the disk. The inner zones have a higher density of tracks than the outer zones. This means that the inner zones can store more data than the outer zones. The zones are also used to control the head actuator, which is the mechanism that moves the read/write heads across the surface of the disk.
The other options are incorrect. Periods are not used in magnetic disks. Sectors are used to divide the tracks on a magnetic disk. Groups are not used in magnetic disks.