5.25-Inch diskette

Older diskette popular in the 1970's that is similar in concept to the 3.5-inch floppy diskette with less capacity and a larger dimension. Unlike the 3.5-inch diskettes, the 5.25-inch diskettes did not have a hard shell and were flimsy. The 5.25-inch diskettes were available in a capacity of 360kb low-density and 1.2MB high-density size; by 1994 the 5.25-inch disk was extinct and was replaced by the popularity of the 3.5-inch disks.

Also see: 3.5-inch disks, Floppy definitions