| A | B |
|---|
| control unit | regulates the step-by-step operation of the computer |
| arithmetic/logic unit (ALU) | calculates and solves logical problems |
| memory unit | tells data and programs where to be stored |
| ALU | arithmetic logic unit |
| BIT | binary digit |
| Binary digit | 0 or 1, each electronic pulse |
| fingernail | the size of a chip |
| on circuit | 1 |
| off circuit | 0 |
| binary code | special code understood by the computer |
| gigabyte | 1,024 megabytes |
| kilobyte | 1,024 bytes |
| software | programs that give instructions to the computer |
| megabyte | 1,024 kilobytes |
| nanosecond | one billionth of a second |
| BYTE | eight bits |
| hardware | components that make up a computer |
| chips | are made of silicon |
| Mhz | unit of speed of the processor |
| clock speed | how quickly the CPU works |
