COMPUTER HARDWARE COMPONENTS FUNCTIONS
EXTERNAL AND INTERNAL STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An electric signal is generated from the magnetic patterns
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An electric signal is created when the magnets touch the drive base
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An electric signal is generated when the magnetic pattern is read from the disk drive
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An electric signal is created when each stack of drives is pushed together
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Detailed explanation-1: -A magnetic disk primarily consists of a rotating magnetic surface (called platter) and a mechanical arm that moves over it. Together, they form a “comb”. The mechanical arm is used to read from and write to the disk. The data on a magnetic disk is read and written using a magnetization process.
Detailed explanation-2: -Information is written to and read from the storage medium as it moves past devices called read-and-write heads that operate very close (often tens of nanometers) over the magnetic surface. The read-and-write head is used to detect and modify the magnetisation of the material immediately under it.
Detailed explanation-3: -Magnetic storage media and devices store data in the form of tiny magnetised dots. These dots are created, read and erased using magnetic fields created by very tiny electromagnets.
Detailed explanation-4: -Bits are saved in the magnetized surface in marks along concentric circles known as tracks. The tracks are frequently divided into areas known as sectors. In this system, the lowest quantity of data that can be sent is a sector. The subdivision of one disk surface into tracks and sectors is displayed in the figure.