These bits are arranged in a pattern, called a bit map, and can then be stored in a file, displayed on a screen, and changed by programs. Therefore, you cannot directly edit text that has been scanned. Most optical scanners sold today come with OCR packages. What that means is that your computer can basically read like you do. A zip drive is a high-capacity floppy disk drive developed by Iomega Corporation.
Zip disks are slightly larger than conventional floppy disks, and about twice as thick.
They can hold 100MB of data. Because they're relatively inexpensive and durable, they have become a popular media for backing up hard disks and for transporting large files.