| No | Word | Definition |
| 1 | Analog to Digital Conversion | A process that involves representing the information contained in an analog continuous wave form as a series of digital pulses (1s or 0s) |
| 2 | Digital to Analog Conversion | A modulation process which involves changing a characteristic of an analog signal to represent digital data. |
| 3 | Analog to Analog Conversion | A modulation technique which involves changing a characteristic of a carrier signal to integrate an analog data signal. |