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Magnetic disk.
Magnetic forces are not necessarily bad for computers, as mechanical hard disks use them to store information. However, you shouldn't place any magnetic objects near them as it will ruin your data that's store on those kinds of disks.
Not magnetic
Magnetic: Fridge magnet Non magnetic: Milk
Magnetic storage optical storage solid-state storage storage capacity
The magnetic field in multiple media tends to increase as new media are added.
Yes; if the storage is on magnetic media then that can be altered by magnetic and electric fields.
Magnetic tape is also known as magnetic media. Magnetic media is used for recording and storing video, audio, and digital signals.
The largest capacity magnetic tape (as of the time of this answer) is 1 Terrabyte.
magnetic momentum is the product of charge and specific capacity
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Magnetic media like a hard disk drives are fairly fast so it is suitable for multimedia applications. Optical media like DVDs and CDs are much slower.
Magnetic
Audio
Magnetic storage media are items like floppy and hard disk drives. They are based on magnetic transfer of data between the heads and the computer.
Both are magnetic media used to store information.