##  [Modem](/index.php/modem) 

  ##  [Modem](https://information.quantumdictionary.io/modem-0) 

  

 [![Information & Communication Dictionary](/sites/default/files/styles/large/public/2026-01/Information%20%26%20Communication.png.webp?itok=g4emS-T7)](/index.php/topic-specific-dictionaries/information-communication)



**Information & Communication Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A device that converts digital signals (discrete symbols or bit streams) into analog waveforms suitable for transmission over an analog physical medium and reconverts received analog waveforms back into digital form; performs modulation and demodulation and may include line coding, synchronization and basic error-detection functions but does not, by definition, perform network-layer routing or hig