| A | B |
|---|
| Access time | Measures the amount of time it takes a storage device to locate an item on a storage medium or the time requjired to deliver an item from memory to the processor. |
| Card reader | A device that reads data, instructions, and information stored on PC Cards or memory cards. |
| CD-R drive | A drive that usually can read both audio CDs and standard CD ROMs. |
| CD-W drive | These drives have write speeds of 40X or more, rewrite speeds of 10X or more, and read speeds of 40X or more. |
| Smart card | This is similar in size to a credit card or ATM card and stores data on a thin microprocessor and have input, process, output, and storage capabilities. |
| Formatting | The process o preparing a disk for reading and writing. |
| Microfiche | A small sheet of film usually about 4 inches by 6 inches. |
| Microfilm | a 100- to 215-foot roll of film. |
| Zip disk | A type of portable magnetic media that can store from 100 MB to 750 MB of data. |
| Hard disk | A storage device that contains one or more inflexible, circular platters that store data, instructions, and information--also known as a hard disk drive. |
| CD ROM | Read-only memory--A type of optical disc that uses laser technology to store data, instructions, and information. |
| DVD-ROM | An extremely high capacity optical disc capable of storing 47 GB to 17 GB. |
| Floppy disk | A portable, inexpensive storage medium that consists of a thin, circular, flexible plastic Mylar film with a magnetic coating enclosed in a square-shaped plastic shell. |
| Storage medium | Secondary storage that is the physical material on which a computer keeps data, instructions, and information. |
| Tape | A magnetically coated ribbon of plastic capable of storing large amounts of data and information at a low cost. |
