Where does “modem” come from?

modem (Portuguese) comes from English modem, from English modulator-demodulator.

modem (Portuguese): modem a device that encodes computer signals into telephone signals and vice versa

Definitions

  1. modem a device that encodes computer signals into telephone signals and vice versa

Ancestry of “modem”, step by step

StepLanguageWordMeaning
1EnglishmodemA device that encodes digital computer signals...
2Englishmodulator-demodulator
Every word from English modulator-demodulator