| A | B |
|---|
| Binary | Anything that has only two states such as on/off or yes/no. |
| Binary Code | A coding system that relies on the use of bits -- 0s and 1s -- to encode information. |
| Binary Digit (Bit) | A 0 or 1 used in the binary number system. |
| Byte | A grouping of eight adjacent binary digits, 0s and 1s. |
| Pixel | The smallest unit on a display screen grid that can be stored, displayed, or addressed. |
| Expansion Slot | A connector designed to allow the addition of printer circuit boards to the motherboard. |
| Motherboard | The main circuit board of a computer housing the microprocessor and providing the means of connecting all the components that make up the computer. |
| Floppy Disk | A reusable magnetic storage medium that used a thin mylar circular disk as the storage surface. |
| Hard Disk | A reusable magnetic storage medium that used hard platters as the storage surface. |
| Secondary Storage | This type of storage is used to maintain the digital information for later use -- disks, tapes, and CD-ROMs. |
