Zip disk
From Just Solve the File Format Problem
The Zip disk is a rotating magnetic storage medium housed in a hard plastic protective cassette. This "super-floppy" disk storage product came in 100 MB, 250 MB, and 750 MB capacities, and was sold from 1994 through approximately 2003.
References
- Zip Drive, Wikipedia.
- Zip Drive support pages, Iomega