| Subject | English | Polish |
| comp., MS | modulator/demodulator | modem (A communications device that converts between digital data from a computer or terminal and analog audio signals that can pass through a standard telephone line) |
| comp., MS | modulator/demodulator | modulator/demodulator (A communications device that converts between digital data from a computer or terminal and analog audio signals that can pass through a standard telephone line) |
| semicond. | modulator diode | dioda modulacyjna |