| A | B |
| A Computer | An electronic device that accepts input, processes data, stores data, and produces output. |
| A computer system includes: | A computer, peripheral devices, and software. |
| Hardware | The physical components of a computer. |
| Software | Programs that run on a computer. |
| Input | What you type into thee computer. |
| Microcomputer | Also known as a personal computer. |
| Terminal | A device with a keyboard and screen used for input and output but is not capable of processing on its own. |
| PDA | Personal Digital Assistant. |