| A | B |
| 3 types of magnetic storage devices: | hard disk, tape, floppy disk |
| 3 types of optical storage devices: | CD, DVD, and Blue-ray Disks |
| 3 types of storage media: | magnetic storage devices, optical storage devices; and flash memory storage |
| Hard disk | the most common type of magnetic storage media |
| Tape | used for inexpensive, slow, long-term backup of data |
| Floppy disk | a flat circle of magnetic oxide-coated mylar enclosed in a plastic case |
| CD | the first standard optical storage device which stores 700 MB of data |
| DVD | an optical storage device which stores between 4.7 and 15.9 GB of data |
| Blue-ray disk | an new type of optical storage device which stores between 15 and 50 GB of data, designed for storing high-definition video |
| Flash memory cards | small, portable cards which connect through a USB port and are used to store pictures and data files |