| A | B |
| CD-ROM | A compact disc that reads only memory |
| CD-ROM Drive | A device that stores and retrieves information from a CD |
| CPU | Central Processing Unit; the brain of the computer. |
| DVD | An optical disc used to store movies with high speed video and sound quality |
| Floppy Disk | A storage device; most common size is 3 ½ and is sometimes called a disk |
| Floppy Drive | A device that stores and retrieves information on floppy disks. |
| Hard Drive | A device inside the computer that holds information such as software and files. |
| IPOS | Input, Processing, Output, Storage |
| Processing | When the computer processes data |
| Processing Device | A device used to process data; the CPU |
| Storage | When the computer stores data |
| Storage Device | A device used to store data; a floppy disk, a CD, the hard drive |