Introduction
Data storage is a critical component of any computer system. Magnetic storage is one of the most affordable ways to store large amounts of data and has been implemented using magnetic tape, floppy disks and hard disk drives. The following link provides the basic ideas of such storage devices
http://study.com/academy/lesson/magnetic-storage-definition-devices-examples.html
At the end of the lesson, you will understand how the data is stored in the floppy and hard disk drives.
Task
At the end of the lesson, you would be able to answer the following
What is electromagnetic induction?
How data is stored in the magnetic memory devices?
How data is read from the magnetic memory devices?
How data storage capacity can be increased?
Process
https://en.wikipedia.org/wiki/Magnetic_storage
Above link provides the basic ideas about various magnetic storage materials.
http://jhigh.co.uk/ComputingSG/ComputerSystems/CS_backStorage1.html
This link explains the storage materials used in computer systems
www.youtube.com/watch?v=f3BNHhfTsvk
The above link gives the visual idea of magnetic storage devices
www.powershow.com/.../Magnetic_Storage_powerpoint
The above link gives the visual idea of magnetic storage devices