| A | B |
|---|
| Address Bus | Carries memory addresses that indicate where the data is located and where the data should go. |
| Bit | A single 0 or 1 in binary code. |
| Bus | A set of circuits that connect the CPU to other components. |
| Bus topology | A LAN topology where each node of a network is connected to a single shared communication cable called a bus. |
| Byte | A group of 8 bits. |
| Cache memory | High-speed memory used to store frequently used data so that it can be quickly retrieved by an application. See also SRAM. |
| Computer | An electronic machine that accepts data |
| Clock rate | The speed at which a CPU can execute instructions |
| Central Processing Unit | A component inside the base unit that processes data and controls the flow of data between the computer’s other units. |
| Gigabyte | 1073741820 bytes. |
| Input device | Used by the computer to accept data. |
| Kilobyte | 1041 bytes. |
| Megabyte | 1048576 bytes. |
| Memory | A component on the motherboard that stores data electronically. |
| Motherboard | The main circuit board inside the base unit. |
| Mainframe | A computer system that is usually used for multi-user applications. |
| Output devices | display or store processed data. |
| Peripheral device | A device attached to a personal computer. |
| Random Access Memory | Temporary memory where data and instructions can be stored. |
| Read Only Memory | Data that is a permanent part of the computer and cannot be changed. |
| Static Random Access Memory | High-speed memory referred to as cache. |
| Star topology | A LAN topology where each node of a network is connected to a hub |
| Topology | The logical arrangement of the nodes on a network. |
| Node | A device |
| Ring Topology | A LAN topology where each node of a network is connected to form a closed loop. |
| Desktop Computer | A single-user system designed with microprocessor technology where an entire CPU is contained on a single chip; designed to fit on or under a desk. |
