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Previous Answer: two types of magnetic disc are magnetic tapes and compact disc
Actually neither of the above are correct. Magnetic "Tape" is exactly that it is a tape, a long slender ribbon which comes in two formats that I know of which are "cartridge" and "reel to reel". Compact Disk is an optical media.
There are several types or formats of Magnetic Disk, sizes and capacities vary.
Fixed Disk:
Hard Disk otherwise referred to as HDD. It can have one or more disc platters made of aluminum alloy or glass with a thin magnetic layer bond. These magnetic disks or platters are sealed within the enclosure. Size 1.8", 2.5", 3.5", 5.25", 8", 12"
Removable Media:
Floppy Disk, removable disks that can be in a hard or soft shell enclosure. The disk itself is a plastic with a magnetic layer bond and is "floppy" one or both sides can be used depending on the disk. sizes range from 3.5", 5.25" to 8"
Floptical, the likes of a floppy however one side is magnetic for storage, the other is optical for head positioning. Size, 3.5"
Cartridge Disk, similar to the floppy or floptical but the cartridge actually contains a platter the likes of that within an HDD. Size 5.25", 8" that I know of.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe three primary classes of magnetic storage devices are hard disk drives, floppy disk drives, and magnetic tape machines.
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