CS 121 Lecture Notes - Lecture 38: Magnetic Storage, Floppy Disk, Polycarbonate

• School: Eastern Oregon University
• Department: Computer Science
• Course: CS 121
• Professor: Richard Croft

Document Summary

Zip disks: zip disks (developed by the lomega company) are presented as a magnetic storage medium similar to floppy disks, but with a significantly higher capacity. The technology used is called bernoulli, also introduced by lomega. The main difference from a: unitat zip floppy disk focuses on the magnetic coating of the disk. On a zip disk, this: coating is of high quality, which results in a high surface density of information. The heads are manufactured with a much smaller size, so that they can cope with such a density of information. The positioning mechanism of the heads is similar to that of the hard disks. In addition, the zone registration technique, introduced in this article, is used. Thanks to all these details, it is possible to find zip disks (and their corresponding drives) of 100 mb and 250 mb. The 250 mb drives are also capable of reading 100 mb zip disks.