Magnetic disk is a storage medium that records data using magnetic spots on disks made of flexible plastic or rigid metal
Most widely used storage medium on todays computers.Two common types:
Floppy disks (common removable storage medium in the past; not widely used today)
Hard disks (included on nearly all PCs today)
Floppy disk: have low capacity, removable magnetic disk made of flexible plastic permanently sealed inside a hard plastic cover
Floppy disk drive is a storage device that reads from and writes to floppy disks
Sometimes referred to as a legacy drive and not included on all new PCs today
Hard disk drive (hard drive) is a storage system consisting of one or more metal magnetic disks permanently sealed with an access mechanism inside its drive
Hard drive characteristics
Stores data magnetically
One or more disks made out of metal
Disks are permanently sealed inside the hard drive to avoid contamination and to enable the disks to spin faster

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