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magnetic disk
The definition of a magnetic disk is a type of data storage that uses magnetic patterns on a circular surface.
(noun)An example of a magnetic disk is a computer’s hard drive.
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See magnetic disk in Webster's New World College Dictionary
disk (sense )
See magnetic disk in American Heritage Dictionary 4
noun
A memory device, such as a floppy disk, a hard disk, or a removable cartridge, that is covered with a magnetic coating on which digital information is stored in the form of microscopically small, magnetized needles.
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