A single CD-ROM disc can store more than 600 MB of data. This equal to an entire set of encyclopedias or over 400 floppy disks. The large storage capacity leaves more room for storing large images, animation, and video. O nly M emory. Read-only means you cannot change the information stored on a disc.
Tape Drive A tape drive is a device that copies files from a computer onto tape cartridges.
Tape drives are also called tape backup units. A tape drive can be inside the computer case or connected to the computer by a cable. An external tape drive is more expensive, but can be used with more than one computer. A tape drive stores information on tape cartridges. These cartridges are similar to the cassettes you buy at music stores.